ChatGPT answers, unedited

For a mobile app storefront, the most developer-friendly commerce API depends on whether you want a full commerce backend, a headless stack, or just payments. The platforms that tend to be easiest for mobile developers are:

1. Shopify — easiest end-to-end mobile commerce

For most mobile storefronts, Shopify is usually the shortest path from “products in an app” to “customers completing purchases.” Its mobile approach uses the Storefront API for products, search, and carts, while Checkout Kit embeds Shopify checkout into native iOS, Android, and React Native apps. Shopify Shopify

Good if you need:

• Product catalog
• Inventory
• Discounts
• Customer accounts
• Orders
• A production-ready checkout flow

Typical stack:

• React Native / Swift / Kotlin app
• Shopify Storefront API (GraphQL)
• Shopify Checkout Kit Shopify

Tradeoff: You get speed and reliability, but you work within Shopify’s commerce model.

2. Stripe — best developer experience if you want control

Stripe is often the favorite among developers because the APIs and SDKs are clean, but it is primarily a payments platform. You usually need to build or combine:

• Product catalog
• Inventory
• Cart logic
• Fulfillment
• Tax/shipping logic

Good if you are building:

• A marketplace
• A custom buying flow
• A SaaS + commerce hybrid
• A highly customized mobile experience

3. BigCommerce — strong headless/mobile option

BigCommerce provides Storefront APIs aimed at shopper-facing experiences, including product queries, carts, customer actions, and checkout workflows. Its GraphQL Storefront API is designed for headless storefronts and front-end applications. BigCommerce BigCommerce

Good if you need:

• More backend flexibility
• Multiple storefronts
• Enterprise integrations
• Custom checkout experiences

4. Commerce Layer — for composable commerce teams

Commerce Layer is built around a headless approach: your mobile app is the storefront, and commerce capabilities are exposed through APIs. It is attractive when you already have a custom architecture and want commerce services as building blocks. Stripe App Marketplace

My practical shortlist

• Startup / MVP mobile store: Shopify
• Native app with a very custom UX: Stripe + your own commerce backend
• Enterprise app with multiple channels: BigCommerce or Commerce Layer
• React Native app: Shopify and Stripe are usually the smoothest starting points

A few questions would change the recommendation:

1. Are you building iOS/Android native, React Native, or Flutter?
2. Do you need the platform to manage inventory + orders, or only payments?
3. Is this a single-vendor store or a marketplace with multiple sellers?

If mobile developer experience is your main criterion, Shopify is a strong fit for a mobile storefront.

• Native iOS/Android: Shopify provides official mobile tooling, including typed Kotlin support for Android and iOS tooling. Shopify Shopify
• React Native: Shopify explicitly supports React Native, with the Storefront API plus Checkout Kit. Shopify
• Commerce primitives: The Storefront API covers products, collections, search, carts, pricing, and checkout flows. Shopify
• Checkout: Checkout Kit lets you hand off the cart's checkoutUrl to a native checkout experience rather than building payment yourself. Shopify
• Developer tooling: GraphiQL, official clients, SDKs, tutorials, and sample apps make the initial integration relatively straightforward. Shopify

How I'd shortlist them

For a new mobile app where you want to get from product catalog → cart → payment quickly, I'd start with Shopify. Its documented mobile flow is unusually direct: Storefront API → cart → Checkout Kit. Shopify Shopify

If your priority is instead maximum backend/control and minimal dependence on a commerce platform's built-in UX, I'd investigate Saleor or commercetools. Saleor, for example, exposes a GraphQL-first architecture with extensive customization and extension points. Saleor Documentation

shopify.dev

If you tell me iOS/Android/React Native + whether you're selling physical goods, subscriptions, or digital products, I can compare the APIs specifically for your architecture.

For a mobile app storefront, the “most developer-friendly” commerce API depends on whether you want a full commerce backend, a headless storefront, or just payments. The strongest options today are usually:

My shortlist by app type

1. Consumer shopping app (Amazon-style storefront)

Pick Shopify.

Why:

• Product catalog, search, collections, carts are already modeled.
• Checkout is handled securely through Shopify’s checkout stack.
• You avoid building tax, payment, order, and fulfillment flows from scratch. Shopify Shopify

Typical stack:

• iOS: Swift + Shopify Storefront API
• Android: Kotlin + Shopify Storefront API
• Cross-platform: React Native + Shopify APIs

2. Marketplace app (many sellers)

Consider Stripe Connect + a commerce backend.

Why:

• Strong payment routing and seller payouts.
• Better fit when you need your own seller model, commissions, onboarding, and custom workflows.

3. Retail app tied to physical stores

Pick Square.

Why:

• Catalog, inventory, orders, payments, and customer APIs are already connected.
• Good fit for omnichannel apps where stores already use Square. Square Square

4. You want maximum control

Pick Medusa (or another headless commerce backend).

Why:

• Your mobile app becomes the primary experience.
• You own the data model and integrations.
• More engineering effort, but fewer platform constraints. Medusa Docs

If I were choosing for a new mobile storefront

• Fastest MVP: Shopify
• Best developer ergonomics: Shopify or Stripe (depending on whether you need commerce vs payments)
• Most customizable long-term: Medusa
• Best retail/POS integration: Square

A few details would change the recommendation: are you building a single-brand store, a marketplace with multiple sellers, or a platform where merchants plug their own stores into your app? Also, are you using native iOS/Android, React Native, or Flutter?

If mobile developer-friendliness is the main criterion, I’d put Shopify first—especially if you want to ship iOS/Android quickly rather than build the entire commerce backend yourself.

My ranking

🥇 Shopify — easiest overall

Shopify is unusually well suited to a native mobile storefront. Its Storefront API handles products, collections, search, carts and checkout, while Checkout Kit embeds Shopify's checkout directly into iOS, Android, or React Native apps. Shopify also provides official iOS and Android client libraries. Shopify Shopify

The basic architecture can be:

Native app → Storefront API → Shopify → Checkout Kit → payment/order

That means you don't have to implement inventory, checkout, payments, order creation, etc. yourself. Shopify even has a current tutorial specifically walking through a native mobile storefront from product listing through checkout. Shopify

shopify.dev

🥈 Medusa — best if you're building the backend too

If your app needs a highly customized commerce model, I'd seriously consider Medusa. Its Store API is designed for external storefronts, and you can create custom API routes in TypeScript/JavaScript. Medusa Documentation Medusa Documentation

This is particularly attractive if your mobile/backend team is already TypeScript-heavy: you get much more control than Shopify while staying in the JavaScript ecosystem.

What I'd choose

• Launching an app/store quickly: Shopify
• Custom marketplace, unusual checkout, or proprietary commerce logic: Medusa
• Large/complex B2B or GraphQL-centric architecture: Saleor
• Already committed to a composable commerce architecture: Commerce Layer

For a typical React Native storefront, my default would be Shopify + Storefront API + Checkout Kit. It gives you the least amount of commerce plumbing to build while still letting the mobile app own the actual shopping UX. Shopify

If you tell me React Native vs Flutter vs native Swift/Kotlin, I can narrow this down further and compare the actual SDK/API experience, auth, checkout, webhooks, and offline/cart handling.

The basic architecture can be:

Native app → Storefront API → Shopify → Checkout Kit → payment/order

That means you don't have to implement inventory, checkout, payments, order creation, etc. yourself. Shopify even has a current tutorial specifically walking through a native mobile storefront from product listing through checkout. Shopify

shopify.dev

🥈 Medusa — best if you're building the backend too

If your app needs a highly customized commerce model, I'd seriously consider Medusa. Its Store API is designed for external storefronts, and you can create custom API routes in TypeScript/JavaScript.

This is particularly attractive if your mobile/backend team is already TypeScript-heavy: you get much more control than Shopify while staying in the JavaScript ecosystem.

What I'd choose

For a mobile-first storefront, I’d put Shopify first for developer friendliness—especially if you want to ship quickly rather than build the commerce backend yourself.

My ranking

Why Shopify wins: its mobile documentation explicitly covers iOS, Android, and React Native, with the Storefront API for products/search/cart and Checkout Kit for embedding checkout directly in the app. It also provides official iOS and Android libraries. Shopify Shopify Shopify

shopify.dev

Medusa is my pick if you're building something more custom. Its Store API is REST-based, has a JS SDK, and is explicitly designed for storefronts including mobile apps. Its client-side authentication/publishable-key model is also convenient for mobile. Medusa Documentation Medusa Documentation

docs.medusajs.com

Saleor is attractive if your team strongly prefers GraphQL and wants an extensible, headless architecture. It emphasizes generated types, GraphQL-native APIs, webhooks, and technology-agnostic frontends. Saleor Documentation Saleor Commerce

commercetools is excellent technically, particularly for enterprise requirements. Its generated, type-safe SDKs provide IDE autocompletion and language-specific abstractions, but the architecture generally demands more commerce/backend expertise than Shopify. commercetools Documentation commercetools Documentation

What I'd choose

If your app is roughly:

React Native/Flutter → products → cart → checkout → orders

I'd start with Shopify.

If it's:

custom mobile UX → custom pricing/catalog/order logic → you're willing to own more backend infrastructure

I'd seriously consider Medusa or Saleor.

One important distinction: "best API" and "best mobile integration" aren't the same thing. Shopify's advantage is that it handles a lot of the ugly commerce/checkout infrastructure while giving your app native control over the shopping experience. Shopify

If you tell me React Native vs Flutter vs native iOS/Android and whether you need subscriptions, multi-vendor, or physical-product shipping, I can narrow this to the best 1–2 choices for your architecture.

If mobile developer-friendliness is the priority, I’d shortlist Shopify, Medusa, and Saleor—but they optimize for different things.

🥇 My pick: Shopify

For a mobile storefront, Shopify currently has the smoothest end-to-end story. Its Storefront API supports native apps, and Shopify provides official iOS and Android libraries. More importantly, Checkout Kit lets you embed Shopify checkout into iOS, Android, or React Native rather than building the payment flow yourself. Shopify Shopify

The typical architecture is essentially:

Mobile app → Storefront API → cart → Checkout Kit → Shopify payment/order

That means you can build your own native UI while outsourcing the hardest commerce pieces—checkout, payments, order creation, etc.—to Shopify. Shopify

shopify.dev

🥈 Medusa if you want more control

I'd seriously consider Medusa if your app is more of a custom commerce product than a conventional Shopify store.

Medusa's Store API is REST-based, has a JS SDK, and its docs explicitly cover building a React Native + Expo mobile app with product listings, carts, and checkout. Medusa Docs Medusa Docs

The big advantage is that your backend and mobile code can both live comfortably in the TypeScript/JavaScript ecosystem, and you can modify the commerce backend rather than working within Shopify's constraints. Medusa Docs

docs.medusajs.com

🥉 Saleor

Saleor is attractive if your team strongly prefers GraphQL and needs sophisticated multi-channel or international commerce. Its API and architecture are very developer-oriented, but I'd rank it behind Shopify and Medusa specifically for a mobile-first team because you'll be assembling more of the overall experience yourself. Saleor Documentation

Bottom line

Choose Shopify if you want "I need a polished mobile storefront in production quickly."

Choose Medusa if you want "The mobile app is the product, and I want complete control over the commerce backend."

If you tell me whether you're using React Native/Expo, Flutter, Swift/Kotlin, or something else, I can give you a more specific recommendation and show the API architecture I'd use.

For a mobile-first storefront, I’d put Shopify at the top for developer friendliness, especially if you want to ship quickly rather than build the commerce backend yourself.

🥇 Shopify — easiest overall

Shopify has unusually good support for native mobile storefronts. Its Storefront API handles products, search, carts, and checkout, while Checkout Kit lets you present Shopify checkout inside an iOS, Android, or React Native app. Shopify even provides mobile-specific tutorials and examples. Shopify Shopify Shopify

The API is GraphQL and Shopify provides official iOS, Android, Node.js, and JavaScript tooling. Shopify

I'd choose it if: your app is primarily a consumer storefront and you want the shortest route from products → cart → payment → order.

shopify.dev

🥈 Medusa — best if you want control

Medusa is compelling if you're building something more custom. Its Store API is REST-based and explicitly supports commerce mobile apps; its authentication model is designed to work with mobile clients. Medusa Docs

You also get a JS SDK, and you can extend the backend with your own API routes. Medusa Docs Medusa Docs

I'd choose it if: you want your own commerce backend and don't want your app architecture tightly coupled to Shopify.

docs.medusajs.com

🥉 commercetools — powerful, but more enterprise-oriented

commercetools has excellent APIs and type-safe SDKs with IDE autocomplete, generated from its API specifications. commercetools Documentation But its flexibility comes with considerably more architecture and implementation work.

My recommendation: for a typical new mobile storefront, Shopify. If you're building a highly differentiated commerce product where you control the backend and business logic, Medusa is probably the more developer-friendly alternative.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or something else, I can compare the actual SDK/API experience for your stack.

If your priority is developer-friendly mobile integration, I’d put Shopify first, with Medusa as the strongest alternative if you want more backend control.

1. Shopify — best overall

Shopify has unusually good first-party support for mobile. Its Storefront API handles products, search, collections and carts, while Checkout Kit embeds Shopify checkout into iOS, Android, or React Native apps. Shopify Shopify

It also provides official iOS and Android client libraries, and the Storefront API is GraphQL. Shopify

The basic architecture is essentially:

Mobile app → Storefront API → cart → Checkout Kit → Shopify payment/order

That means you don't have to build and maintain payment, checkout, order creation, and a bunch of commerce infrastructure yourself.

shopify.dev

2. Medusa — best for control

I'd seriously consider Medusa if you're building something more bespoke than a conventional store.

Its Store API is REST-based and explicitly designed for storefronts including mobile commerce apps. It has JWT authentication, publishable API keys, and an official JS SDK. Medusa Documentation Medusa Documentation

More importantly, Medusa has a dedicated React Native + Expo mobile-app tutorial covering product listing, cart management, and checkout. Medusa Documentation

The tradeoff is that you own more of the commerce stack. That's powerful, but it means more engineering and operational responsibility than Shopify.

docs.medusajs.com

3. Saleor

Saleor is compelling if your team strongly prefers GraphQL and wants a composable/headless architecture. Its API covers products, checkout, channels, promotions, payments, etc., and its docs specifically emphasize custom storefronts and integrations. Saleor Documentation

I'd choose it over Medusa mainly if GraphQL is a major architectural preference.

My recommendation

For a new mobile storefront, I'd choose:

Shopify → if you want to ship quickly and minimize commerce infrastructure.

Medusa → if the commerce experience itself is a major differentiator and you want maximum backend customization.

If you tell me whether you're using React Native/Expo, Flutter, Swift/Kotlin, or something else, I can give you a more specific comparison of the APIs, authentication, checkout flow, webhooks, SDKs, and likely implementation effort.

For a mobile-first storefront, I’d put Shopify at the top for developer-friendliness.

My ranking

Why Shopify wins: its mobile stack is unusually cohesive. You can use the Storefront API for products, search, and carts, then hand the cart's checkoutUrl to Checkout Kit, which supports iOS, Android, and React Native. Shopify also provides official iOS and Android libraries. Shopify Shopify Shopify

shopify.dev

BigCommerce is my runner-up if you want a more API-centric/headless architecture. Its GraphQL Storefront API covers catalog, customer accounts, carts, and checkout, and is explicitly designed for headless storefronts. BigCommerce BigCommerce

docs.bigcommerce.com

What I'd choose for your app

• React Native + want to ship quickly: Shopify
• Native Swift/Kotlin + want a mature commerce backend: Shopify
• Need maximum control over the storefront/backend architecture: BigCommerce
• Large enterprise with multiple commerce services: commercetools
• Want to own/customize the commerce backend: Medusa

One important distinction: don't choose solely based on catalog APIs. For a mobile storefront, the painful parts tend to be authentication, persistent carts, checkout, payments, customer accounts, discounts, shipping, and order state. Shopify's Storefront API + Checkout Kit combination removes a lot of that integration work. Shopify

If you tell me React Native vs Flutter vs native iOS/Android, I can give you a more specific comparison of the top 3 APIs and show what the product → cart → checkout code looks like for each.

BigCommerce is my runner-up if you want a more API-centric/headless architecture. Its GraphQL Storefront API covers catalog, customer accounts, carts, and checkout, and is explicitly designed for headless storefronts.

For a mobile-first storefront, I’d put Shopify at the top of the list right now—especially if you want the fastest path from “API integration” to a production checkout.

My ranking

Why Shopify wins for mobile

Shopify has an unusually complete native-mobile story:

• Storefront API for products, search, carts, pricing, etc.
• Official iOS/Swift and Android/Kotlin SDKs with typed interfaces.
• Checkout Kit for embedding Shopify checkout directly into your app.
• React Native support as well.
• You can hand a checkoutUrl from your cart to Checkout Kit and let Shopify handle payment/order creation. Shopify Shopify

The official mobile SDKs specifically cover product fetching and cart management, while Checkout Kit handles checkout. Shopify Shopify

That means your architecture can be roughly:

Mobile App
   │
   ├── Product/search UI
   │       ↓
   │   Shopify Storefront API
   │
   ├── Cart
   │       ↓
   │   Shopify Storefront API
   │
   └── Checkout
           ↓
       Shopify Checkout Kit
           ↓
       Payment → Order

That's a pretty compelling developer experience if your app is React Native, iOS, or Android.

When I'd choose Medusa instead

If by “developer-friendly” you mean “I want to own the commerce backend and bend it to my architecture,” I'd seriously consider Medusa.

Medusa exposes REST Store APIs specifically intended for storefronts, including mobile apps, and its JWT authentication model is explicitly designed to work well with mobile applications. Medusa Docs

The tradeoff is that you have more responsibility: storefront hosting, backend customization, integrations, payments, and operational architecture are more in your hands. Medusa's storefronts are separate applications that communicate with its Store API. Medusa Docs

My recommendation

If you're building a normal consumer mobile shopping app: choose Shopify.

If commerce is deeply customized and your engineering team wants to own the backend: choose Medusa.

If you're building for a large enterprise with complex catalogs, pricing, markets, and integrations: look harder at commercetools.

For your particular use case, I'd start with Shopify Storefront API + Checkout Kit unless you have a specific reason to own the commerce backend. Shopify even provides an end-to-end native mobile storefront tutorial covering products → cart → checkout. Shopify

shopify.dev

If you tell me React Native vs Flutter vs native Swift/Kotlin, I can narrow this down to the best 2–3 APIs and compare SDK quality, checkout, auth, webhooks, inventory, pricing, and estimated implementation effort.

If mobile-first developer experience is your priority, I’d put Shopify first.

My ranking

1. Shopify — best overall mobile integration

• Native iOS (Swift) and Android (Kotlin) SDKs for products and carts. Shopify Shopify
• Checkout Kit gives you embedded checkout for iOS, Android, and React Native rather than making you build the entire payment flow yourself. Shopify
• Storefront API is GraphQL and designed specifically for custom storefronts, including native apps. Shopify Shopify
• Good choice if you want to get an app into production quickly without owning the entire commerce backend.
• Medusa — best if you want control

• REST Store APIs are explicitly intended for mobile commerce apps. Medusa Documentation
• You get a JS SDK plus direct REST APIs, and you can add your own API routes and customize the backend. Medusa Documentation Medusa Documentation
• The tradeoff is that you own more infrastructure and checkout architecture than with Shopify.
• commercetools — strongest for sophisticated enterprise headless commerce

• I'd consider it when you need highly composable, multi-market, enterprise commerce rather than the simplest mobile developer experience.
• For a typical startup/mobile storefront, I'd generally choose Shopify or Medusa first.

For your particular use case

If the architecture is roughly:

iOS / Android app → commerce API → products/cart/checkout → payments/orders

I'd choose Shopify unless you specifically need a highly customized commerce backend.

The particularly nice part is that Shopify now gives you a fairly clean division:

Your app
→ Storefront API for products/search/cart
→ Checkout Kit for checkout
→ Shopify handles payment/order creation

That means you don't have to reinvent checkout, payment state, tax/shipping behavior, etc. Shopify Shopify

shopify.dev

If you tell me whether you're building with React Native, Flutter, Swift, or Kotlin, I can also compare Shopify vs Medusa vs commercetools specifically for that stack, including auth, checkout, webhooks, SDK quality, and estimated implementation complexity.

If your priority is developer-friendly mobile integration, I’d put shopify.com first for most teams.

My ranking

1. Shopify — best overall for mobile

• Official support for iOS, Android, and React Native.
• Storefront API handles products, search, variants, and carts.
• Checkout Kit embeds Shopify checkout directly into the app rather than making you build the entire payment/order flow yourself. Shopify Shopify
• There are typed mobile SDKs and official examples; for iOS, Shopify provides a Swift Buy SDK. Shopify
• GraphQL-only Storefront API is clean and fairly modern. Shopify
• BigCommerce — good headless alternative

• Strong Storefront APIs, including GraphQL, REST, customer authentication, and shopper context. BigCommerce
• I'd consider it if you want more control over the commerce backend and don't want to be as tightly coupled to Shopify's ecosystem.
• commercetools — best for sophisticated/custom commerce

• Very API-centric and highly customizable, with GraphQL, HTTP APIs, and type-safe SDKs. commercetools Documentation commercetools Documentation
• It explicitly documents mobile/browser applications and OAuth flows. commercetools Documentation
• More engineering effort than Shopify, though—I'd choose it for complex enterprise commerce rather than a straightforward storefront app.

What I'd choose for your app

If you're building something like:

Mobile UI → products → cart → checkout → order

I'd use Shopify Storefront API + Checkout Kit. Shopify's current mobile architecture maps almost exactly onto that flow: your app owns the native browsing/cart UI, while Shopify handles checkout and payment processing. Shopify

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or another stack, I can also compare the best APIs specifically for that stack.

If mobile developer experience is your priority, I’d put Shopify at the top of the list.

My ranking

1. Shopify — best overall for mobile

• First-party iOS, Android, and React Native support.
• Storefront API handles products, search, and carts.
• Checkout Kit embeds Shopify checkout directly in your app rather than forcing users into a browser.
• Official mobile tutorials and SDKs make the path from catalog → cart → payment unusually straightforward. Shopify Shopify Shopify
• The Storefront API is GraphQL and framework-agnostic, so you're not locked into Shopify's frontend stack. Shopify

shopify.dev

2. Medusa — best if you want maximum control

• Its Store API is REST-based and explicitly designed for storefronts, including mobile apps.
• It provides a JS SDK plus publishable API keys intended for client-side storefront use.
• Much more customizable than Shopify, but you're taking on more backend/platform responsibility yourself. Medusa Docs Medusa Docs

docs.medusajs.com

3. commercetools — best for enterprise/headless

• Strong APIs and generated, type-safe SDKs.
• Excellent if your app is part of a sophisticated multi-channel commerce architecture.
• Generally more engineering-heavy than Shopify for getting a straightforward mobile storefront shipped. commercetools
• Saleor — strong open-source GraphQL option

• Modern GraphQL API and good headless architecture.
• Attractive if your team prefers owning/customizing the commerce stack, but Shopify has the more turnkey mobile-specific tooling. Saleor Documentation

What I'd choose

For a typical iOS/Android storefront where you want to ship quickly, I'd choose Shopify.

The particularly nice architecture is:

Mobile UI → Shopify Storefront API → Cart → Checkout Kit → Shopify payment/order processing

That means you don't have to build and maintain your own payment/checkout infrastructure. Shopify's current mobile documentation explicitly supports this flow for Swift, Android, and React Native. Shopify Shopify

If your app is highly custom and you expect commerce logic that Shopify's model will fight you on, I'd choose Medusa instead.

If you tell me whether you're building in React Native, Flutter, Swift, or Kotlin, I can narrow this down to the best 2–3 APIs and show what the actual integration looks like.

If mobile developer experience is your priority, I’d put Shopify first for most storefront apps.

My ranking

Why I’d choose Shopify: its current mobile architecture is unusually straightforward: use the Storefront API for products, search, and carts, then hand the cart's checkoutUrl to Checkout Kit, which embeds Shopify checkout in native iOS, Android, or React Native. Shopify Shopify

Shopify also provides a native-mobile walkthrough that goes all the way from fetching products → creating a cart → presenting checkout, which is a good indicator of how much plumbing your team has to build itself. Shopify

shopify.dev

When I'd pick something else

Choose commercetools if you're building a sophisticated composable-commerce platform and want maximum control over catalog, cart, checkout, pricing, promotions, etc. Its SDKs provide type safety, IDE autocomplete, and access to its APIs, but you'll generally be responsible for more architecture than with Shopify. Commercetools Documentation Commercetools Documentation

So, for a typical consumer mobile storefront:

Shopify → fastest/easiest path to production.

For a large enterprise app where commerce is deeply customized:

commercetools → more flexibility, more engineering.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or another stack, I can compare the actual SDK/API experience and checkout flow for the top 3.

If your priority is developer-friendly mobile integration for a custom storefront, I’d put Shopify first.

My pick: Shopify

Shopify has unusually good native-mobile support. Its Storefront API is designed for custom experiences including native apps, and Shopify provides official Android and iOS libraries. Shopify Shopify

The particularly nice part is that the mobile flow is already modeled around what you need:

Products → cart → Shopify Checkout

Shopify's current mobile documentation walks through fetching products, creating a cart, and presenting checkout through Checkout Kit. Shopify The native SDKs give you typed interfaces in Swift and Kotlin for products and carts. Shopify Shopify

So if you're building something like:

React Native / Flutter / Swift / Kotlin app → product catalog → cart → checkout → orders

I'd start with Shopify Storefront API + Checkout Kit.

When I'd choose something else

Choose Stripe if you're really building your own commerce system and primarily need excellent mobile payments. Stripe has official iOS, Android, and React Native SDKs, with components such as PaymentSheet for a relatively low-friction checkout implementation. Stripe Docs Stripe Docs

Choose Medusa if you want an open-source commerce backend that you can customize heavily. Its Store API is explicitly intended for storefronts including commerce mobile apps, and it has a JS SDK. Medusa Docs

Choose commercetools if you're targeting sophisticated enterprise/headless commerce. Its SDKs provide type-safe clients, IDE autocompletion, and support Kotlin/JVM and TypeScript, but the overall platform is more infrastructure-heavy than Shopify. commercetools Documentation commercetools Documentation

Bottom line: for a new mobile storefront where you want to minimize commerce plumbing and maximize time spent on the app UX, Shopify is probably the best developer experience. If you tell me whether you're using React Native, Flutter, Swift, or Kotlin, I can recommend the exact API/SDK architecture I'd use. shopify.dev docs.stripe.com

If your priority is developer-friendly mobile integration, I’d put Shopify first, especially for an iOS/Android/React Native storefront.

My ranking

Why Shopify wins for a mobile app

Shopify has a particularly clean mobile architecture:

Your app → Storefront API → Shopify cart → Checkout Kit → Shopify checkout

Its Storefront API handles products, collections, search, variants and carts, while Checkout Kit embeds Shopify checkout directly into iOS, Android, or React Native. Shopify also provides official mobile libraries and sample apps. Shopify Shopify

That means you can make the product/catalog experience completely native rather than building a webview storefront, while avoiding the headache of implementing checkout, payments, order creation, etc. yourself.

The current Storefront API is GraphQL, and Shopify supports tokenless access for several basic storefront operations, which makes initial prototyping particularly straightforward. Shopify

When I'd choose something else

Choose commercetools if you're building a sophisticated commerce platform rather than essentially "a mobile app for a Shopify store." Its SDKs provide type-safe, language-specific APIs, including TypeScript and JVM/Kotlin support, but its architecture expects more middleware/backend work. commercetools commercetools

Choose Medusa if owning the commerce backend and customizing the underlying business logic is important to you.

Choose Stripe if you're primarily building your own commerce system and need excellent payment infrastructure—not if you want a complete catalog/cart/order/commerce backend.

Bottom line

For a startup or product team asking "I need to get a native mobile storefront working quickly", I'd choose Shopify.

For "I need complete control over the commerce domain and have backend engineers", I'd lean commercetools or Medusa.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or Expo, I can also compare the actual integration experience—including auth, catalog, cart, checkout, webhooks, and estimated engineering effort—for the top 3.

If mobile developer experience is your top criterion, I’d put Shopify first.

Why Shopify wins for mobile

Shopify has an unusually complete native-mobile path: its Storefront API handles products, search and carts, while Checkout Kit embeds Shopify checkout directly into iOS, Android, and React Native apps. Shopify also provides official Android and iOS libraries. Shopify Shopify

The architecture is essentially:

Your mobile UI → Storefront API → cart → Checkout Kit → Shopify payment/order processing

That means you don't have to build the most painful parts of commerce—checkout, payment handling, order creation, etc.—yourself. Shopify even has an end-to-end native Swift tutorial covering product fetching, cart creation and checkout. Shopify Shopify

When I'd choose something else

Choose Medusa if your app is really a custom commerce product rather than a custom storefront. Its Store API is REST-based and explicitly designed for webshops and mobile commerce apps, with JWT authentication intended for mobile clients. You also get a JS SDK and can create your own API routes. Medusa Docs Medusa Docs

Choose Saleor if your team strongly prefers GraphQL and wants a more composable/open architecture. Its API covers products, checkout, channels, promotions and payments, but you'll generally be doing more integration work yourself. Saleor Documentation

Choose commercetools if you're building enterprise-scale headless commerce and developer tooling/type safety matter more than having the easiest mobile path. Its SDKs are strongly typed and generated from its API specifications. commercetools Documentation

My recommendation

For a typical iOS/Android storefront where you want to ship quickly:

1. Shopify — best overall mobile DX
2. Medusa — best if you need backend/control flexibility
3. Saleor — best GraphQL/open-composable option
4. commercetools — best for sophisticated enterprise commerce

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or something else, I can narrow this down to the best API/SDK stack and show what the product → cart → checkout implementation looks like for each.

If your goal is to build a mobile shopping app (not just accept payments), the platforms I'd rank by developer experience are:

1. Shopify (my top recommendation for storefront apps)

If you're building something that includes:

• product browsing
• search
• cart
• checkout
• customer accounts
• orders

Shopify is difficult to beat.

Highlights:

• Storefront GraphQL API
• Native iOS and Android support
• React Native support
• Embedded Checkout Kit
• Apple Pay and Shop Pay integration
• Excellent documentation and sample apps

A typical architecture looks like:

Mobile App
    ↓
Storefront GraphQL API
    ↓
Products
Collections
Cart
Customer
Checkout

Shopify's current mobile stack is specifically designed for native storefronts, with the Storefront API handling catalog/cart operations and Checkout Kit embedding Shopify's checkout inside iOS, Android, or React Native apps. Shopify Shopify

2. Stripe (best payments platform)

Stripe is phenomenal—but it's important to distinguish what it does.

Stripe gives you:

• payments
• subscriptions
• wallets
• invoices
• fraud protection

It does not provide:

• product catalog
• inventory
• collections
• merchandising
• search

Its mobile SDKs are among the best available, supporting iOS, Android, and React Native with prebuilt payment UIs like Payment Sheet, Apple Pay, Google Pay, and many payment methods. Stripe Docs Stripe Docs

Many companies pair:

Shopify + Stripe

or

Custom backend + Stripe

3. Commerce Layer

If you're building a composable/headless architecture:

• completely API-first
• REST APIs
• mobile-friendly
• works well with React Native and Flutter

It's an excellent choice if you don't want your frontend tightly coupled to a commerce platform.

4. BigCommerce

Good option when:

• merchants already use BigCommerce
• you need headless commerce
• you want REST and GraphQL APIs

The developer experience is solid, though the mobile ecosystem isn't as polished as Shopify's.

5. Adobe Commerce (Magento)

Extremely powerful, but expect:

• steeper learning curve
• larger API surface
• more backend work
• heavier infrastructure

I'd recommend it only for enterprise requirements.

If you're building a brand-new mobile storefront

A stack like this is hard to beat:

• Frontend: React Native or Flutter
• Commerce: Shopify Storefront API
• Checkout: Shopify Checkout Kit
• Authentication: Customer Account API
• Analytics: Firebase
• Push notifications: Firebase Cloud Messaging
• Search: Algolia (optional)

This minimizes the amount of backend code you need while giving you a production-ready commerce experience.

If you're building a marketplace instead

For apps like Etsy, Depop, or Facebook Marketplace, I'd choose:

• Stripe Connect
• Your own backend (e.g., PostgreSQL + Node.js, Go, or similar)
• Elasticsearch or Algolia
• Object storage for images
• A custom product/catalog service

Marketplace workflows (multiple sellers, payouts, commissions, onboarding) generally require more flexibility than an off-the-shelf storefront platform provides.

Recommendation: If you're building a branded retail storefront where merchants own their catalogs, Shopify offers the most developer-friendly end-to-end mobile commerce platform. If your primary need is payments or a custom marketplace, Stripe is the strongest foundation, typically combined with your own commerce backend rather than used as the commerce platform itself.

If you're building a marketplace instead

For apps like Etsy, Depop, or Facebook Marketplace, I'd choose:

• Stripe Connect
• Your own backend (e.g., PostgreSQL + Node.js, Go, or similar)
• Elasticsearch or Algolia
• Object storage for images
• A custom product/catalog service

Marketplace workflows (multiple sellers, payouts, commissions, onboarding) generally require more flexibility than an off-the-shelf storefront platform provides.

Recommendation: If you're building a branded retail storefront where merchants own their catalogs, Shopify offers the most developer-friendly end-to-end mobile commerce platform. If your primary need is payments or a custom marketplace, Stripe is the strongest foundation, typically combined with your own commerce backend rather than used as the commerce platform itself.

If your priority is developer-friendly mobile commerce APIs, I’d put Shopify first, with Medusa as the stronger choice if you want maximum backend control.

🥇 My pick: Shopify

Shopify has unusually good support for native mobile storefronts. Its Storefront API works across native apps and other platforms, and Shopify provides official iOS and Android libraries. Shopify Shopify

More importantly, Shopify has an explicit mobile storefront workflow: fetch products through Storefront API, create carts, then use Checkout Kit to present Shopify checkout inside the app. Shopify

That means you can avoid building a huge amount of infrastructure yourself:

Mobile app → Storefront API → Shopify cart → Checkout Kit → Shopify orders

For a startup trying to get an app into production quickly, that's hard to beat.

shopify.dev

🥈 If you want more control: Medusa

Medusa is compelling if your app is the primary product and you don't want your commerce model constrained by Shopify.

Its Store API is explicitly designed for storefronts including commerce mobile apps, uses REST, and supports JWT authentication intended for mobile applications. Medusa Docs

You also get modular control over things like products, carts, inventory, pricing, payments, promotions, fulfillment, and orders. Medusa Docs

docs.medusajs.com

What I'd choose

• Need to launch quickly: Shopify
• Native iOS/Android storefront: Shopify
• Already have a Shopify merchant/backend: Shopify by a mile
• Highly customized commerce logic: Medusa
• Want to own/control the commerce backend: Medusa
• Only need payments: Stripe
• Large enterprise with complex multi-market commerce: commercetools

For a typical mobile storefront, I'd start with Shopify unless you have a concrete reason to own the commerce backend. The mobile-specific documentation and Checkout Kit significantly reduce the amount of commerce plumbing your team has to build. Shopify

If you tell me whether you're building with React Native, Flutter, Swift/Kotlin, or Expo, I can narrow this down to the best 2–3 APIs and compare their actual mobile integration experience.

That means you can avoid building a huge amount of infrastructure yourself:

Mobile app → Storefront API → Shopify cart → Checkout Kit → Shopify orders

For a startup trying to get an app into production quickly, that's hard to beat.

shopify.dev

🥈 If you want more control: Medusa

Medusa is compelling if your app is the primary product and you don't want your commerce model constrained by Shopify.

Its Store API is explicitly designed for storefronts including commerce mobile apps, uses REST, and supports JWT authentication intended for mobile applications. docs.medusajs.com

You also get modular control over things like products, carts, inventory, pricing, payments, promotions, fulfillment, and orders.

For a mobile-first storefront, I’d put Shopify at the top of the list for developer-friendliness.

My ranking

1. Shopify — best overall for mobile

• The Storefront API is explicitly designed for native apps and supports products, search, carts, pricing, etc. Shopify Shopify
• Shopify now has Checkout Kit for iOS, Android, and React Native, so you don't have to build and maintain your own checkout/payment UX. Shopify Shopify
• Official client libraries exist for iOS and Android, and React Native can use the Storefront API with standard GraphQL tooling. Shopify Shopify
• The API is framework-agnostic, so you're not forced into Shopify's frontend stack. Shopify
• commercetools — best for sophisticated/custom commerce

• Very strong APIs and type-safe SDKs, including Kotlin/JVM support, with IDE autocompletion and generated SDKs. commercetools Documentation
• Better fit if you're building a highly customized commerce platform rather than essentially a mobile storefront on top of an existing merchant ecosystem.
• More engineering effort than Shopify.
• Medusa — best if you want open-source/control

• Particularly attractive for a JavaScript/TypeScript team.
• You get more control over the backend and data model, but you'll generally own more of the infrastructure and commerce plumbing.

For your specific use case

If your architecture looks like:

React Native / Swift / Kotlin → commerce API → checkout → orders

I'd choose Shopify unless you have a strong reason not to.

The particularly nice part is that Shopify separates the mobile experience into:

Storefront API → your native UI/cart → Checkout Kit → Shopify checkout/payment

That means your team can make the app feel completely native while Shopify handles much of the difficult commerce machinery. Shopify

If you're using React Native, Shopify is an especially compelling choice because its mobile documentation explicitly covers React Native and Checkout Kit. Shopify

shopify.dev

If you tell me React Native vs Flutter vs native Swift/Kotlin, and whether you're selling physical products, subscriptions, or digital goods, I can narrow this down to the best 2–3 APIs and compare SDK quality, checkout, authentication, webhooks, pricing, and time-to-build.

For a mobile app storefront, the most developer-friendly commerce API platform depends on whether you want a fast launch, maximum customization, or enterprise scale. The strongest options are usually:

My usual recommendation by scenario

1. You need to ship an iOS/Android storefront quickly
→ Shopify Storefront API + mobile app frontend

Shopify is often the easiest path because you get:

• product catalog APIs
• carts
• checkout flows
• customer accounts
• inventory/order management
• a large ecosystem of integrations

Shopify supports custom storefronts and mobile apps through its Storefront API and SDK tooling. Shopify Help Center Shopify

2. You are building a marketplace, social commerce app, or highly customized shopping experience
→ commercetools

It is designed around composable commerce: your app owns the experience while commerce capabilities are exposed through APIs. It has mobile/browser guidance covering product discovery, customer accounts, and carts. commercetools Documentation

3. Your app is subscription-heavy or payment-centric
→ Stripe + a commerce layer

Stripe's mobile SDKs and payment APIs are among the easiest developer experiences, but you typically pair Stripe with a catalog/order system rather than using it as the entire commerce backend. Stripe also provides integrations with commerce platforms such as commercetools. Stripe Docs

What I would evaluate before choosing

For a mobile-first storefront, prioritize:

• Checkout API quality — can you keep users inside your app?
• Native SDKs — iOS/Android support vs only REST/GraphQL
• Authentication flows — customer accounts, guest checkout, OAuth
• Webhooks — order updates, inventory changes, fulfillment events
• Sandbox/testing tools
• API stability/versioning
• Offline-friendly patterns — caching products, handling cart state

If you are a small-to-mid engineering team building a typical consumer shopping app, I would start with Shopify. If you expect a very custom product experience (think marketplace, multi-vendor, unusual pricing, global complexity), I would lean toward commercetools. Shopify Help Center commercetools Documentation

If you tell me your stack (React Native, Flutter, native iOS/Android, backend language) and whether you need marketplace vs single-brand commerce, I can narrow it down.

For a mobile app storefront, the most developer-friendly commerce API depends on whether you prioritize speed to launch, maximum customization, or enterprise complexity. The strongest options today are usually:

Shoprocket Naturaily## My shortlist for a mobile-first app

1. Shopify — easiest overall

Best if you want to ship quickly and avoid building commerce infrastructure.

Pros:

• Mature APIs for products, collections, carts, customers, and checkout.
• Strong mobile support through Storefront API and checkout tooling.
• Huge ecosystem for payments, fulfillment, tax, and inventory integrations.
• Good choice if your app is a custom front end over an existing commerce operation.

Shopify supports custom mobile storefronts where your iOS, Android, or React Native app consumes commerce APIs and handles the UI layer. Shopify

Cons:

• Less freedom for deeply customized checkout or unusual business rules.
• You are building on Shopify's commerce model.

Best stack:

• React Native + Shopify Storefront API
• Native iOS/Android + Shopify APIs

2. Medusa — most developer-friendly if you own the stack

Best if your team wants a true API-first commerce backend.

Pros:

• TypeScript/Node.js ecosystem.
• Very natural fit for React Native, Next.js, and JavaScript teams.
• You control the backend logic, data model, and workflows.
• Good for marketplaces, custom product logic, subscriptions, and unique checkout flows.

Medusa is designed around separate storefronts consuming commerce APIs, with official storefront tooling and SDK patterns. Medusa Documentation

Cons:

• You own more infrastructure.
• Smaller ecosystem than Shopify.

Best stack:

• React Native app
• Medusa backend
• PostgreSQL
• Stripe/payment provider

3. Saleor — best GraphQL experience

Best if your developers prefer strongly typed APIs.

Pros:

• Excellent GraphQL API.
• Strong catalog, inventory, and multi-channel concepts.
• Good for complex commerce operations.

Cons:

• Python/Django backend.
• More engineering overhead than Shopify.
• Usually better suited to teams comfortable running backend infrastructure.

Eryx Innovations Lab

Recommendation by app type

• Consumer shopping app (fashion, DTC, marketplace MVP): Shopify
• Custom marketplace or unusual business model: Medusa
• Large catalog + complex inventory rules: Saleor or commercetools
• Enterprise brand replacing legacy commerce: commercetools or Shopify Plus

For a new mobile storefront starting from scratch, I would usually evaluate:

1. Shopify first for speed and operational maturity.
2. Medusa if your differentiator is the shopping experience itself and you want backend control.

A few questions would narrow it down:

• Are you building iOS/Android native, React Native, or Flutter?
• Do you need your own checkout/payment flow, or can the platform handle checkout?
• Is this a single-brand store, marketplace, or multi-vendor app?

If your priority is developer-friendly mobile commerce integration, I’d put Shopify first for most teams.

My ranking

Why I'd choose Shopify

Shopify has unusually direct support for the exact architecture you're describing: native iOS/Android/React Native UI + Storefront API + embedded checkout. Its current mobile documentation specifically supports product browsing, search, cart management, and checkout in native apps. Shopify Shopify

The typical flow is:

Mobile app → Storefront API → cart → checkoutUrl → Checkout Kit → Shopify payment/order

Checkout Kit handles the checkout experience inside the app, while the Storefront API handles products, search, and carts. Shopify also provides official mobile libraries/examples and recommends Apollo for typed GraphQL queries and caching. Shopify Shopify

That's a big advantage over platforms where you have to assemble the commerce backend, checkout, payments, and mobile integration yourself.

One caveat: Shopify's Storefront API is GraphQL-only, so your team needs to be comfortable with GraphQL. Shopify

When I'd pick something else

• Medusa — choose this if your app is the product and you want maximum control over pricing, checkout, catalog logic, and backend architecture. It's a stronger choice when you're willing to own more infrastructure.
• Saleor — attractive if your team strongly prefers GraphQL and wants an API-first/headless backend.
• CommerceTools — I'd consider it for a large enterprise where composable commerce and complex integrations matter more than implementation simplicity.
• WooCommerce — sensible if the business already runs on WordPress/WooCommerce, but I wouldn't start a new mobile-first commerce product with it solely for its API.

Bottom line: for a new mobile storefront, I'd start with Shopify unless you have a strong reason to own the entire commerce backend. The combination of Storefront API + Checkout Kit is currently one of the cleanest mobile-commerce paths. Shopify Shopify

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or Expo, I can narrow this down further and compare the actual SDK/API experience between Shopify, Medusa, Saleor, and CommerceTools.

The typical flow is:

Mobile app → Storefront API → cart → checkoutUrl → Checkout Kit → Shopify payment/order

Checkout Kit handles the checkout experience inside the app, while the Storefront API handles products, search, and carts. Shopify also provides official mobile libraries/examples and recommends Apollo for typed GraphQL queries and caching.

That's a big advantage over platforms where you have to assemble the commerce backend, checkout, payments, and mobile integration yourself.

One caveat: Shopify's Storefront API is GraphQL-only, so your team needs to be comfortable with GraphQL.

When I'd pick something else

If your priority is developer-friendly mobile commerce integrations, I’d put Shopify first for most teams.

Why Shopify wins

Shopify has unusually strong first-party mobile support. Its Storefront API handles products, search, carts and checkout, while Checkout Kit embeds Shopify checkout directly into iOS, Android, or React Native apps. Shopify also provides official iOS and Android client libraries. shopify.dev

That means your architecture can be roughly:

Mobile app → Shopify Storefront API → Shopify cart → Checkout Kit → Shopify payments/order

You don't have to build the complicated commerce infrastructure yourself.

Shopify mobile commerce docs

When I'd choose something else

BigCommerce is compelling if API flexibility is more important than turnkey mobile tooling. Its GraphQL Storefront API is specifically designed for frontend applications and covers catalog, carts, checkout and customer authentication. docs.bigcommerce.com

commercetools is stronger if you're building a sophisticated enterprise architecture. It has type-safe SDKs for TypeScript, Java/Kotlin, PHP and .NET, plus APIs for commerce, checkout and other services. It explicitly documents mobile/browser implementations. docs.commercetools.com

My recommendation

If you're building a new consumer mobile storefront and want to ship quickly, I'd choose Shopify.

If you're building a commerce platform where you need maximum control over the backend and business logic, I'd look harder at commercetools or BigCommerce.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or another stack, I can also compare the actual mobile integration experience and API architecture for the top 3.

If your priority is developer-friendly mobile integration, I’d put Shopify first overall—especially if you want to ship quickly and avoid building commerce infrastructure yourself.

🥇 Shopify — best overall for mobile

Shopify now has a particularly strong mobile story: its Storefront API handles products, search and carts, while Checkout Kit embeds Shopify checkout into iOS, Android, or React Native apps. Shopify Shopify

That means your app can essentially do:

native app UI → Storefront API → cart → Checkout Kit → Shopify handles payment/order

You don't have to reinvent checkout, payment integrations, tax handling, or a lot of the ugly commerce edge cases.

The Storefront API is GraphQL-only and officially supports mobile apps, with Shopify providing examples around Apollo for iOS, Android, and React Native. Shopify Shopify

shopify.dev

🥈 Medusa — best if you want to own the backend

I'd choose Medusa over Shopify if your app's commerce logic is unusually custom.

Medusa exposes a dedicated Store API specifically intended for storefronts and mobile apps, with REST endpoints and a JavaScript SDK. Its JWT authentication model is explicitly designed to work well for mobile applications. Medusa Docs

The tradeoff is that you're taking on substantially more responsibility for the commerce backend. Medusa gives you a customizable commerce engine rather than Shopify's highly managed ecosystem. Medusa Docs Medusa Docs

docs.medusajs.com

My recommendation

For a normal consumer mobile storefront:

Shopify + Storefront API + Checkout Kit

For a highly differentiated marketplace, subscription product, unusual checkout, or commerce platform you're building as infrastructure:

Medusa

The key distinction is "I need commerce inside my app" → Shopify versus "I need to build my own commerce system that happens to have a mobile app" → Medusa.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or something else, I can narrow this down further and compare the actual SDK/API experience.

If your priority is developer-friendly mobile commerce integrations, I’d put Shopify first—especially if you want to ship an iOS/Android/React Native storefront quickly without building checkout and payment infrastructure yourself.

My ranking

Why I'd choose Shopify for your app

Shopify has unusually good mobile-specific tooling rather than simply exposing a generic commerce API. Its current mobile architecture gives you:

• Storefront API for products, search, carts, pricing, etc.
• Checkout Kit for embedding Shopify checkout directly inside iOS, Android, or React Native.
• Official iOS and Android client libraries.
• React Native support through the same Storefront API/Checkout Kit approach.
• A documented end-to-end mobile storefront flow, from product → cart → checkout. Shopify Shopify Shopify

The particularly nice part is that your app can own the shopping UI while Shopify handles the difficult commerce plumbing. You create a cart, obtain its checkoutUrl, and hand that to Checkout Kit. Shopify

shopify.dev

When I'd pick Medusa instead

If you're saying "I want the commerce engine to be mine", I'd seriously consider Medusa.

Its Store API is REST-based and explicitly designed for storefronts including commerce mobile apps. It also has a JavaScript/TypeScript SDK, and its publishable API keys are intended for client-side storefront use. Medusa Docs Medusa Docs

The tradeoff is that Medusa gives you more responsibility. Shopify gives you a mature hosted checkout; with Medusa, you're assembling more of the payment/checkout experience yourself.

docs.medusajs.com

Bottom line

For a startup/mobile app where time-to-market matters: Shopify.

For a product where the commerce backend itself is part of your competitive advantage: Medusa.

If you tell me whether you're building in React Native, Flutter, Swift/Kotlin, or something else, I can narrow this down further and compare the actual SDK/API experience, authentication, checkout, webhooks, and estimated integration effort.

If mobile developer experience is your top criterion, I’d put Shopify first right now.

My ranking for a mobile storefront

Why Shopify wins for your use case

Shopify has a particularly nice mobile architecture: your app uses the Storefront API for products, search, and carts, then hands the cart's checkoutUrl to Checkout Kit, which embeds Shopify checkout directly into iOS, Android, or React Native. Shopify Shopify

It also provides official iOS and Android client libraries, and the current Storefront API is GraphQL with versioned releases. Shopify

That means you can build something like:

Native mobile app
       ↓
Shopify Storefront API
       ↓
Products / Search / Cart
       ↓
Checkout Kit
       ↓
Shopify checkout + payment
       ↓
Order

For a startup, that's a big reduction in the amount of commerce infrastructure you have to build and maintain.

When I'd choose something else

Choose Medusa if your storefront is really a custom commerce product rather than a custom front end for conventional Shopify commerce. It's particularly attractive if you want to own the backend, customize checkout/order logic extensively, or build marketplace/multi-vendor functionality. Current comparisons generally position it as the strongest developer-oriented open-source option. OpenReplay Blog OSSAlt

Choose commercetools if you're building for a large organization with complicated catalogs, markets, pricing, and enterprise integrations. Its SDKs provide typed APIs and IDE-friendly development, and it explicitly documents secure mobile/browser integration. commercetools Documentation commercetools Documentation

Choose Saleor if your team strongly prefers GraphQL and wants an open-source backend with more control than Shopify.

My recommendation

For a new consumer mobile storefront, I'd start with Shopify Storefront API + Checkout Kit unless you already know you need unusual commerce logic.

The key distinction is:

• "I need to sell products in my app." → Shopify
• "Commerce itself is a core piece of my software and I need to customize the backend." → Medusa
• "I'm building enterprise commerce infrastructure." → commercetools

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or another stack, I can narrow this down to the best 2–3 APIs and compare their actual mobile integration effort.

Why Shopify wins for your use case

Shopify has a particularly nice mobile architecture: your app uses the Storefront API for products, search, and carts, then hands the cart's checkoutUrl to Checkout Kit, which embeds Shopify checkout directly into iOS, Android, or React Native. Shopify Shopify

It also provides official iOS and Android client libraries, and the current Storefront API is GraphQL with versioned releases. Shopify

That means you can build something like:

Native mobile app
       ↓
Shopify Storefront API
       ↓
Products / Search / Cart
       ↓
Checkout Kit
       ↓
Shopify checkout + payment
       ↓
Order

For a startup, that's a big reduction in the amount of commerce infrastructure you have to build and maintain.

When I'd choose something else

Choose Medusa if your storefront is really a custom commerce product rather than a custom front end for conventional Shopify commerce. It's particularly attractive if you want to own the backend, customize checkout/order logic extensively, or build marketplace/multi-vendor functionality. Current comparisons generally position it as the strongest developer-oriented open-source option. blog.openreplay.com ossalt.com

Choose commercetools if you're building for a large organization with complicated catalogs, markets, pricing, and enterprise integrations. Its SDKs provide typed APIs and IDE-friendly development, and it explicitly documents secure mobile/browser integration.

Choose Saleor if your team strongly prefers GraphQL and wants an open-source backend with more control than Shopify.

My recommendation

For a new consumer mobile storefront, I'd start with Shopify Storefront API + Checkout Kit unless you already know you need unusual commerce logic.

The key distinction is:

If mobile developer-friendliness is the priority, I’d put Shopify first, with Medusa as the strongest alternative if you want more backend control.

🥇 Shopify — easiest overall

Shopify is unusually well suited to your use case. Its Storefront API explicitly supports native apps, and Shopify provides official iOS and Android client libraries. Its mobile architecture also separates the catalog/cart API from Checkout Kit, so you don't have to build payment infrastructure yourself. shopify.dev

For a typical app:

Mobile UI → Shopify Storefront API → Shopify cart → Checkout Kit → Shopify payment/order

That gives you products, collections, search, cart, pricing, checkout, inventory/back office, etc., without building the commerce backend yourself. shopify.dev

Shopify Storefront API docs

🥈 Medusa — best if you're a developer-first team

Medusa is compelling if you want the commerce backend to feel like your application, rather than plugging an app into Shopify. Its Store API is REST-based, has a JS SDK, and explicitly supports mobile commerce apps. docs.medusajs.com

It's especially attractive with React Native/TypeScript because you can use the same ecosystem across your app and commerce integration. The tradeoff is that you own more infrastructure and commerce implementation than with Shopify. docs.medusajs.com

Medusa Store API docs

My recommendation

If you're building one mobile storefront and want to ship quickly → Shopify.

If you're building a highly customized commerce product where you want control of the backend/data/business logic → Medusa.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or another stack, I can narrow this down and compare the actual mobile SDK/API experience, authentication, checkout, webhooks, and costs.

For a mobile-first storefront, I’d put Shopify first for developer-friendliness.

Why Shopify wins

Shopify has a particularly clean mobile architecture:

Your app → Storefront API → cart → Checkout Kit → Shopify payment/order

Its current mobile tooling explicitly supports iOS, Android, and React Native. The Storefront API handles products, search, and carts, while Checkout Kit embeds Shopify's checkout directly in your app. shopify.devshopify.dev

There are also official mobile libraries: Shopify documents an iOS Buy SDK with typed Swift interfaces, and its mobile tutorials cover both Swift and Kotlin. shopify.dev

The other big advantage is that you don't have to build the difficult payment/order workflow yourself. Your cart produces a checkoutUrl, which Checkout Kit uses to present the Shopify checkout experience inside the app. shopify.devshopify.dev

When I'd choose BigCommerce instead

BigCommerce is compelling if you're building a more deeply customized/headless commerce system. Its GraphQL Storefront API covers catalog, customers, carts, and checkout, and is explicitly designed for front-end/headless applications. docs.bigcommerce.com

I'd choose it over Shopify if you particularly value API openness and control over the commerce stack and are comfortable implementing more of the mobile integration yourself.

My recommendation

If your goal is:

"I want to ship an iOS/Android shopping app quickly without reinventing checkout."

Go with Shopify.

If your goal is:

"I want a highly composable commerce backend and I'm willing to build more of the integration."

Look seriously at BigCommerce or commercetools.

For a new mobile storefront in 2026, I'd start with Shopify Storefront API + Checkout Kit + Apollo. Shopify itself recommends Apollo for typed queries and caching in production mobile apps. shopify.devshopify.dev

Shopify mobile commerce documentation
Shopify Storefront API reference
BigCommerce Storefront API documentation

For a mobile storefront, I’d put Shopify first for overall developer-friendliness—especially if you want to ship quickly without building commerce infrastructure yourself.

🥇 Shopify — best overall

Shopify has unusually good support specifically for mobile apps. Its Storefront API handles products, search, carts, and checkout, while Checkout Kit provides native iOS, Android, and React Native integrations. Shopify also provides official iOS and Android client libraries. shopify.devshopify.dev

That means your architecture can be roughly:

Native/React Native app → Shopify Storefront API → Shopify checkout

You don't have to recreate inventory, pricing, cart logic, customer accounts, payments, etc. Shopify's backend handles those pieces. shopify.dev

Shopify mobile commerce documentation

🥈 Medusa — best if you're building a highly custom product

I'd seriously consider Medusa if "developer-friendly" means I want to own the backend and customize the commerce model. Its Store API is REST-based, explicitly supports mobile commerce, and it has a JS SDK. Its authentication model using JWTs is also designed to work well with mobile clients. docs.medusajs.com

The tradeoff is that you're taking on substantially more infrastructure and engineering responsibility than with Shopify.

Medusa Store API docs

My recommendation

If you're a startup/team trying to get the app into users' hands quickly:

Shopify + React Native + Storefront API + Checkout Kit

If you're building something where commerce is deeply customized—unusual pricing, marketplace mechanics, custom fulfillment, complex business rules, etc.:

Medusa + your own mobile client

One particularly nice Shopify detail is that the Storefront API is framework-agnostic, so you aren't locked into React Native; Shopify explicitly supports native Android/iOS clients as well. shopify.devshopify.dev

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or something else, I can narrow this down to the best 2–3 APIs and compare SDK quality, auth, checkout, webhooks, pricing, and implementation effort.

If mobile-first developer experience is your priority, I’d put Shopify first.

Why Shopify is my pick

Shopify now has a particularly clean mobile architecture: Storefront API → native app UI → Checkout Kit. The Storefront API handles products, search, carts, and checkout URLs, while Checkout Kit embeds Shopify's checkout directly into iOS, Android, or React Native apps. shopify.devdocs.commercetools.com

It also provides official client libraries for iOS, Android, Node.js, and JavaScript, plus a GraphQL API and tokenless access for a number of storefront operations. shopify.dev

For example, your app architecture can be roughly:

Mobile App
   │
   ├── Product/search UI
   │       ↓
   │   Shopify Storefront API
   │       ↓
   │   Cart
   │       ↓
   │   checkoutUrl
   │       ↓
   │   Shopify Checkout Kit
   │       ↓
   └── Order

That's a very attractive setup if you don't want to build and maintain payment, checkout, tax, and order-processing infrastructure yourself.

When I'd choose commercetools instead

If your app is really a custom commerce product, rather than a mobile storefront for a conventional merchant, I'd seriously consider commercetools. Its APIs are more composable and its SDKs emphasize type safety and developer tooling. It also explicitly documents mobile/browser application patterns and OAuth scopes. docs.commercetools.com

The tradeoff is that you're taking on more architectural responsibility. That's great when you need it, but less attractive if your goal is "get a mobile store shipped quickly."

My recommendation

• Startup / MVP / conventional ecommerce: Shopify
• React Native app: Shopify is especially compelling because Checkout Kit explicitly supports React Native. shopify.dev
• Native iOS/Android: Shopify
• Highly customized B2B/B2C commerce engine: commercetools
• Want maximum control over the backend: consider Medusa/composable commerce
• Need an established alternative with relatively open APIs: BigCommerce

If you tell me whether you're building with React Native, Flutter, Swift/Kotlin, or another stack, I can compare the actual API/SDK experience—including auth, catalog, cart, checkout, webhooks, and estimated implementation complexity.

If mobile developer-friendliness is your top criterion, I’d put Shopify first—especially for a native iOS/Android or React Native storefront.

My ranking

Why Shopify wins: its current mobile stack is unusually complete. The Storefront API handles products, search, and carts, while Checkout Kit embeds Shopify checkout directly into iOS, Android, and React Native apps. Shopify also maintains typed native SDKs for Swift and Kotlin. shopify.dev

That means your architecture can be roughly:

Native app → Storefront API → cart → Checkout Kit → Shopify checkout/order

rather than having to build and maintain the entire commerce/checkout layer yourself. shopify.dev

When I'd choose Medusa instead

If your app is the product, rather than a mobile client for a conventional Shopify store, I'd seriously consider Medusa. Its Store API is REST-based, it has a JS SDK, JWT authentication is explicitly suited to mobile applications, and you control/host the commerce backend yourself. docs.medusajs.com

So:

• Want to launch quickly: Shopify
• Want native mobile + mature commerce infrastructure: Shopify
• Want complete backend control and custom business logic: Medusa
• Enterprise-scale composable commerce: commercetools

For a new mobile storefront, my default recommendation would be Shopify unless you already know you need a highly customized commerce backend.

Shopify mobile commerce documentation
Shopify Storefront API documentation
Medusa Store API documentation

If mobile developer experience is your top criterion, I’d rank the main options roughly:

My pick: Shopify for a storefront app

Shopify's mobile commerce docs are unusually well aligned with your use case. Its Storefront API handles products, search, carts, and checkout URLs, while Checkout Kit embeds the checkout experience directly into iOS, Android, or React Native apps. shopify.devdocs.commercetools.com

The particularly nice architecture is:

Your mobile UI → Shopify Storefront API → cart → Checkout Kit → Shopify payment/order processing

Shopify also has official iOS and Android libraries, and its docs provide native Swift/Kotlin examples as well as React Native guidance. shopify.dev

When I'd choose something else

Stripe + custom backend — best if your storefront itself is the product and you don't want your commerce model constrained by Shopify. Stripe's mobile SDK is excellent: PaymentSheet supports iOS, Android, and React Native, with Apple Pay, Google Pay, saved payment methods, and 100+ payment methods. docs.stripe.comdocs.medusajs.com

Medusa — compelling if you want an open-source/customizable commerce backend. They have an explicit React Native + Expo integration tutorial covering product listing, carts, and checkout. docs.medusajs.com

commercetools — I'd favor it for a sophisticated enterprise architecture rather than minimizing initial development effort. Its APIs and SDKs are strong, including a TypeScript SDK with type safety/autocomplete, and it has specific guidance for mobile/browser applications. docs.commercetools.com

Bottom line

For a new mobile storefront where you want to ship quickly, I'd start with Shopify Storefront API + Checkout Kit.

For a highly differentiated app where you want complete ownership of the commerce layer, I'd look seriously at Medusa or a custom backend + Stripe.

If you tell me whether you're using React Native/Expo, Flutter, Swift/Kotlin, or another stack, I can narrow this down to the best 2–3 choices and compare their APIs, auth, cart/checkout flow, webhooks, and estimated implementation complexity.

If your priority is developer-friendly mobile integration, I’d put Shopify first, with Medusa as the strongest choice if you want more backend control.

🥇 Shopify — best overall

Shopify is unusually well suited to a mobile storefront. Its current stack gives you:

• Storefront API for products, search, carts, pricing, etc.
• Official iOS and Android libraries
• A typed Kotlin Android Buy SDK
• Checkout Kit for embedding Shopify checkout into iOS, Android, or React Native
• A documented end-to-end mobile storefront flow from product → cart → checkout. shopify.dev

That last point is important: you don't have to build payment/order checkout infrastructure yourself. Your app can create a cart, receive a checkoutUrl, and hand it to Checkout Kit. shopify.dev

Shopify mobile commerce docs

I'd choose Shopify if: you're trying to ship an app quickly and don't need to own the entire commerce backend.

🥈 Medusa — best for a highly customized app

Medusa is more "commerce backend as building blocks." Its Store API is REST-based and explicitly supports commerce mobile apps, while its JS SDK makes integration convenient for JavaScript-based clients. docs.medusajs.com

The big advantage is architectural freedom: the storefront is separate from the Medusa backend, and you can build it with essentially whatever frontend stack you want. docs.medusajs.com

I'd choose Medusa if: your mobile app has unusual business logic, custom checkout, marketplace-like behavior, or you want significant control over the backend.

Medusa storefront documentation

🥉 Saleor — great if your team loves GraphQL

Saleor is another strong headless option with a GraphQL-centric API and extensive customization capabilities. docs.saleor.io

My recommendation: for a conventional mobile storefront, Shopify is the easiest choice by a substantial margin. If you're building a differentiated commerce product where the backend itself is part of your competitive advantage, I'd investigate Medusa instead.

If you tell me whether you're using React Native, Flutter, Swift, or Kotlin, I can narrow this down to the best API/SDK stack for your specific app.

If your priority is developer-friendly mobile integration, I’d put Shopify first, especially for a native iOS/Android or React Native storefront.

My ranking

Why Shopify wins for a mobile app: Shopify explicitly supports mobile storefronts for iOS, Android, and React Native. Its Storefront API handles products, search and carts, while Checkout Kit embeds Shopify's checkout directly into the app. There are also official Android and iOS libraries. shopify.dev

That gives you a relatively clean architecture:

Mobile UI → Storefront API → Cart → Checkout Kit → Shopify

For example, Shopify's current Android SDK provides typed Kotlin interfaces for products and carts, then hands the resulting checkoutUrl to Checkout Kit. shopify.dev

Medusa would be my choice if you're saying, "I don't want Shopify to dictate my commerce backend." Its Store API is explicitly designed for commerce mobile apps, uses REST, and supports JWT authentication suitable for mobile clients. You also control the server and can add custom API routes. docs.medusajs.com

Saleor is particularly attractive if your team loves GraphQL and strong typing. Its API is GraphQL-native, technology-agnostic, and supports generated types, extensions, and webhooks. saleor.io

Bottom line

• Fastest path to a polished mobile store: Shopify
• Maximum backend control: Medusa
• GraphQL-first / highly customizable: Saleor
• Large enterprise/composable architecture: commercetools

If you tell me React Native vs Flutter vs native Swift/Kotlin and whether you need subscriptions, marketplace/multi-vendor, or just a normal product catalog + checkout, I can narrow this to the best 1–2 options.

If mobile developer-friendliness is the main criterion, I’d put Shopify first—especially for an iOS/Android/React Native storefront.

My pick: Shopify

Shopify has unusually good support specifically for native mobile storefronts. Its Storefront API handles products, search, and carts, while Checkout Kit embeds checkout directly into iOS, Android, and React Native apps. Shopify also provides native client libraries and production sample apps. shopify.dev

The basic architecture is pleasantly simple:

Mobile app → Storefront API → cart → Checkout Kit → Shopify checkout/order

You don't have to build the complicated payment/order machinery yourself. Shopify's current docs explicitly cover Swift, Kotlin, and React Native implementations. shopify.dev

Shopify mobile commerce docs

When I'd choose something else

Saleor is probably the strongest alternative if your team is very API-centric. It's GraphQL-native, highly extensible, open source, and emphasizes generated types and developer tooling. docs.saleor.io

commercetools is excellent if you're building a sophisticated enterprise/composable architecture. It has strong SDKs and explicitly supports mobile/browser applications, but its security and middleware architecture means you'll generally do more engineering yourself than with Shopify. docs.commercetools.com

Bottom line

If you're a startup or small-to-mid-sized team building a consumer mobile storefront, I'd rank them:

1. Shopify — easiest/fastest
2. Saleor — best API-first/open architecture
3. commercetools — best for complex enterprise commerce

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or Expo, I can narrow this down further and compare the actual SDK/API experience for your stack.

For a mobile-first storefront, I’d put Shopify at the top for developer friendliness—especially if your priority is getting a polished iOS/Android app working quickly.

My ranking

Why Shopify wins: its current mobile stack is unusually cohesive. The Storefront API handles products, search and carts, while Checkout Kit embeds checkout directly into iOS, Android, or React Native. Shopify also provides official mobile client libraries and sample apps. shopify.dev

The typical flow is essentially:

Mobile UI → Storefront API → cart → checkoutUrl → Checkout Kit → Shopify payment/order

That means you don't have to build the payment/order infrastructure yourself. shopify.dev

Medusa is the one I'd investigate if you're a developer-heavy team and want maximum control. Its Store API is explicitly intended for commerce mobile apps, supports JWT authentication suitable for mobile clients, and exposes REST APIs that you can customize. docs.medusajs.com

commercetools is powerful for sophisticated enterprise architectures, but I'd choose it when flexibility and composability outweigh ease of implementation. Its own docs recommend SDKs and, for custom frontends, generally recommend putting a middleware layer between your frontend and its APIs. docs.commercetools.com

Bottom line

If you're building a consumer mobile shopping app and want the least friction → Shopify.

If you're building a highly customized commerce product where the commerce backend itself is part of your engineering advantage → Medusa.

If you tell me whether you're using React Native, Flutter, Swift/Kotlin, or something else, I can compare the actual SDK/API experience and checkout architecture for the top 3.

For a mobile app storefront, the “most developer-friendly” commerce API depends on whether you prioritize speed to launch, native mobile experience, or maximum customization. The strongest options are usually:

My shortlist for a mobile-first app

1. Shopify — easiest path for most app storefronts

Shopify is probably the smoothest if you want:

• product catalog APIs
• carts
• checkout
• inventory
• orders
• native app checkout flows

Its Storefront API supports custom storefronts, including mobile apps, and Shopify provides mobile tooling such as Checkout Kit for iOS, Android, and React Native. shopify.dev

Good fit:
“Users browse products in my app → add to cart → pay → order is managed by Shopify.”

Typical stack:

• React Native / Flutter / Swift / Kotlin
• Shopify Storefront API
• Shopify Checkout Kit

2. Stripe — best developer experience if you want to own the UX

Stripe is excellent when your app is more like:

• marketplace
• subscription commerce
• creator economy
• custom buying flows

Its SDKs cover iOS, Android, and React Native, reducing payment integration work. docs.stripe.com

The downside: Stripe is primarily payments infrastructure. You may need additional systems for:

• product catalog
• inventory
• fulfillment
• promotions
• merchant tooling

A common architecture is:

• Stripe Payments + Billing
• your own product/order backend
• your own mobile storefront

3. commercetools — best if you are building a serious commerce platform

If your app is expected to become a large marketplace or multi-brand platform, commercetools is built for API-first commerce. It provides APIs and mobile/browser integration guidance, but it assumes a stronger engineering team. docs.commercetools.com

Good for:

• complex pricing
• multiple markets
• B2B
• custom checkout logic
• composable architecture

Recommendation by scenario

• Solo developer / small startup: Shopify
• Mobile app with custom payments or subscriptions: Stripe
• Marketplace or large-scale commerce platform: commercetools
• Need to ship an MVP in weeks: Shopify
• Need total control over every commerce rule: Stripe + your own backend or commercetools

If you tell me your stack (React Native, Flutter, native iOS/Android) and whether you need marketplace features, subscriptions, or just a storefront, I can narrow it down.