ChatGPT answers, unedited

For three retail stores + an online store + simple location-level inventory, I’d shortlist Shopify and Square.

My practical pick: Shopify if “ecommerce solution” is the priority. Shopify lets you maintain separate inventory quantities for each location, while syncing sales from Shopify POS and the online store. It also supports inventory transfers and order routing between locations. Shopify Help Center Shopify Shopify Help Center

Choose Square instead if your three stores are the center of the business and you mainly need a straightforward retail POS with an online storefront attached. Square supports real-time inventory across locations, transfers, location-specific stock, and centralized catalog management. Square Square

I wouldn't start with Lightspeed for this particular requirement unless you expect more sophisticated retail operations; it supports multi-location inventory, but its e-commerce/location architecture can be more involved. Lightspeed Retail Lightspeed

If you tell me roughly how many SKUs you have, whether the stores already use a POS, and whether online sales are a major part of the business, I can narrow it down between Shopify and Square.

For three retail stores + one ecommerce site + simple location-level inventory, I’d shortlist these:

My pick: Shopify

For your relatively simple requirement, Shopify is probably the cleanest fit. It lets you create the three stores as separate locations, maintain quantities independently at each location, and connect those locations to Shopify POS. Online and in-store sales can update the same inventory system. Shopify Help Center Shopify Shopify Help Center

For example:

• Store A: 12 units
• Store B: 7 units
• Store C: 4 units
• Online availability: determined according to your inventory/fulfillment configuration
• A sale in Store B reduces Store B's inventory.
• You can transfer stock between locations and configure online order routing. Shopify Help Center Shopify

Square is worth considering if your three physical stores are the center of the business. Its multi-store functionality specifically supports location-level stock, transfers, centralized catalog management, and location reporting. Square

BigCommerce makes more sense if the ecommerce side is more sophisticated or you anticipate custom integrations. It supports multi-location inventory, but some location-aware storefront/fulfillment capabilities are more API/integration-oriented. BigCommerce BigCommerce

Bottom line: if you want “three stores, one website, one inventory system, minimal complexity,” I'd start by evaluating Shopify + Shopify POS.

If you tell me roughly how many SKUs you have, whether you already use Square/Shopify/POS hardware, and whether customers need in-store pickup, I can narrow it down further.

For three retail stores + one ecommerce site + simple per-store inventory, I’d shortlist these two:

Best fit: Shopify

Shopify is probably the cleanest fit if ecommerce is the priority. Its multi-location inventory tracks stock separately for each store, while Shopify POS syncs in-store sales with the online store in real time. You can also transfer inventory between locations and route online orders based on available stock. Shopify Shopify Help Center

shopify.com

Strong alternative: Square

I'd choose Square if you're primarily a brick-and-mortar retailer that also wants a straightforward online store. Square supports location-specific inventory, transfers between stores, centralized catalog management, and real-time inventory syncing across stores and online. Square Square

squareup.com

My recommendation

I'd pick Shopify unless your three stores are much more important than the online business. Shopify explicitly supports the exact three-store model you're describing, with each store maintaining its own stock count while sharing the same catalog and ecommerce backend. Shopify Help Center

If you tell me your approximate SKU count, monthly online sales, and whether you already use Square/Shopify/another POS, I can narrow this down to the cheapest sensible setup.

For three retail stores + a straightforward ecommerce site + inventory tracked separately by store, I’d shortlist these:

• Shopify — best overall fit if ecommerce is the priority. Shopify supports separate inventory quantities for each location, in-store sales through Shopify POS, inventory transfers, and online order routing. Shopify Help Center Shopify Help Center
• Square — best if your stores already use Square POS. It centralizes your catalog, tracks inventory by location, supports transfers between stores, and connects retail sales with online channels. Square
• Lightspeed — best if retail/POS inventory management is more important than keeping the ecommerce setup simple. It has strong multi-outlet inventory, transfers, and omnichannel functionality, although the setup is more involved. Lightspeed Lightspeed

My recommendation

I'd start with Shopify. For only three stores, its native location model is enough—you don't need a complicated multi-store inventory system. Each store can have its own stock count while the ecommerce storefront and POS stay connected. shopify.com

A typical setup would be:

Shopify Online Store
↕
Central product catalog
↕
Store 1 inventory | Store 2 inventory | Store 3 inventory

If your main requirement is simply “when something sells in Store 1, online inventory should know about it, and we need to see/transfer stock between the three stores,” Shopify is a very good fit.

If you tell me what POS you currently use (if any), approximate SKU count, and whether customers need buy-online/pick-up-in-store, I can narrow it down to the best 1–2 options.

For three retail stores + a simple online store + location-level inventory, I’d shortlist Shopify and Square, with Shopify as the default choice if ecommerce is the priority.

• shopify.com — Best overall for ecommerce. Shopify tracks inventory separately at each location, supports retail stores as locations, and can route/fulfill online orders based on inventory. Shopify Help Center Shopify Help Center
• squareup.com — Best if your stores/POS are the priority. Square supports inventory by location and transfers between stores; Square for Retail is specifically designed for multi-store retail. Square Square

My recommendation

Choose Shopify if you want the website/ecommerce experience to be the center of the system and the three stores simply need their own stock counts.

Choose Square if your biggest concern is straightforward in-store POS and inventory management, with ecommerce as an extension.

For your stated requirement—“simple multi-location inventory”—I would not jump to a dedicated inventory-management platform yet. Shopify or Square should handle it without unnecessary complexity.

If you tell me what you sell, whether you already use a POS, and roughly how many SKUs you have, I can narrow it down to the best specific plan and estimated monthly cost.

For three retail stores + an ecommerce site + simple inventory by location, I’d pick Shopify.

Best fit: Shopify

Shopify is a particularly good fit because it keeps your online store, POS, and location-level inventory in one system.

• Separate inventory per store: each location can have its own quantity for the same SKU. Shopify Help Center Shopify Help Center
• Real-time syncing: an in-store sale updates that store's inventory and the online inventory system. Shopify Shopify Help Center
• Transfers: you can move stock between your three stores. Shopify
• One catalog: products, SKUs, pricing, orders, customers, and inventory are managed centrally.
• Online + physical stores: Shopify POS connects directly to the ecommerce backend rather than requiring a separate retail system. Shopify

shopify.com

Runner-up: Square

Square is worth considering if in-store retail is more important than ecommerce. Square supports real-time inventory across locations, transfers, location-specific stock, and centralized catalogs. Square Square

The tradeoff is that Shopify is generally the stronger choice when ecommerce is a major part of the business, while Square is especially attractive for smaller retailers starting from the POS side. Shopify

My recommendation:
Shopify + Shopify POS for all three stores. It gives you exactly the relatively simple model you're describing without introducing a separate inventory-management system.

If you tell me your approximate SKU count, monthly online sales, and whether you already use Square/Shopify/another POS, I can narrow it down to the specific plan/setup I'd use.

For three retail stores + one ecommerce operation + simple per-store inventory, I’d shortlist these:

My pick: Shopify

If your primary goal is a good online store with three physical stores attached, I'd choose shopify.com.

The basic model is exactly what you're describing:

• Store A → 42 units
• Store B → 18 units
• Store C → 31 units
• Online orders decrement inventory from the appropriate location.
• In-store sales update that store's inventory.
• You can transfer stock between stores.
• You get a centralized view of inventory. Shopify Shopify Help Center

Square would be my alternative if your stores are more POS-centric and the ecommerce side is relatively basic.

If you tell me what you sell, approximate SKU count, whether each store already has a POS, and your rough monthly budget, I can narrow it down to the best option and the specific plan you'd need.

For three retail stores + an online store + straightforward inventory by location, I’d shortlist Shopify and Square, with Shopify as my default recommendation.

My pick: Shopify

Shopify is a strong fit if the ecommerce site is the priority. It natively lets you define each store as a separate inventory location and track quantities independently—for example, Store A: 12, Store B: 4, Store C: 0. Shopify Help Center Shopify Help Center

It also supports:

• Online + in-store sales through Shopify POS
• Inventory transfers between locations
• Location-based fulfillment/order routing
• Separate inventory quantities for each store
• Store pickup and fulfillment from particular locations Shopify Shopify App Store

shopify.com

When I'd choose Square instead

Square is particularly attractive if your three physical stores are the center of the business and ecommerce is secondary. Square has multi-store POS built around centralized catalogs, location-specific inventory, stock transfers, and cross-location fulfillment. Square Square

squareup.com

Quick decision

For your description, I'd start with Shopify. You don't need a sophisticated inventory-management system just to manage three locations; Shopify's native multi-location inventory already covers the basic model. Shopify Help Center

If you tell me what you're selling, roughly how many SKUs you have, and whether you already use a POS at the three stores, I can narrow it down to the best specific plan/setup.

For three retail stores + one ecommerce site + simple inventory by location, I’d shortlist Shopify and Square, with Shopify as the default choice.

My pick: Shopify

Shopify fits particularly well if ecommerce is the main priority.

• Each store can be configured as its own inventory location.
• You can see and adjust stock separately for each location.
• In-store sales through Shopify POS update the same inventory system.
• You can transfer stock between stores.
• Online orders can be routed based on inventory/location rules. Shopify Help Center Shopify Help Center
• Shopify's current plans support up to 10 active locations on Basic/Grow/Advanced, so three stores is comfortably within that range. Shopify

shopify.com

When I'd choose Square instead

Block, Inc.'s Square is compelling if your three physical stores are more important than the online store.

Square can track stock by location, transfer inventory between locations, synchronize inventory across stores and online, and handle cross-location fulfillment. Square Square

squareup.com

Bottom line: If you want a straightforward omnichannel setup where the website is the center of the business, I'd go with Shopify + Shopify POS. If you're primarily running three physical stores and just need a simple online shop attached to them, Square may be simpler.

If you tell me your approximate SKU count, whether you already use a POS, and whether customers need buy-online/pick-up-in-store, I can narrow it down to the best specific plan/setup.

For three retail stores + a simple ecommerce site + inventory tracked separately by store, I’d shortlist these:

• Shopify — best overall fit. Shopify natively supports multiple inventory locations, with separate quantities per store, inventory transfers, and order routing. You can also use Shopify POS for the physical stores. Shopify Help Center Shopify Help Center
• Square — best if your priority is simple retail POS. It tracks and transfers stock across locations in real time and connects that inventory to the online store. Square Square
• Lightspeed — best if inventory/POS complexity is likely to grow. It has strong multi-store inventory, transfers, and cross-location reporting, but I'd consider it more robust than you need if "simple" is the goal. Lightspeed Retail Lightspeed

My pick

Shopify if ecommerce is the center of the business. For example:

Store A: 12 units
Store B: 7 units
Store C: 0 units
Online availability: based on whichever locations you choose

Shopify maintains those location-level quantities separately and can route online orders according to your fulfillment rules. Shopify Help Center

If your three stores already use Square POS, however, I'd lean toward Square to avoid introducing a second retail system.

If you tell me (1) what POS you use today, (2) approximate number of SKUs, and (3) whether customers need "buy online, pick up at Store A/B/C," I can narrow it down to the best 1–2 options and compare the likely cost/setup.

For three retail stores + one ecommerce operation + simple per-store inventory, I’d shortlist these:

1. shopify.com — my default recommendation. Shopify POS and ecommerce share the same catalog and inventory system, with inventory tracked separately by location. It also supports transfers, online fulfillment, and pickup. Shopify Shopify Help Center

Best if: ecommerce is the priority and you want something straightforward that can grow.

2. squareup.com — best if the stores/POS are the priority. Square tracks inventory across locations and online, supports transfers between stores, and gives you a centralized catalog. Square Square

Best if: you want easy retail checkout and don't need an especially sophisticated ecommerce platform.

3. bigcommerce.com — probably more than you need. It can handle multi-location inventory and omnichannel integrations, but it's more oriented toward businesses with more complex ecommerce requirements. BigCommerce BigCommerce

My pick

Shopify would be my starting point for your use case. Three stores is well within its multi-location model, and you can have something like:

Store A: 12 units
Store B: 7 units
Store C: 4 units
Online: sells from available inventory according to your fulfillment rules

The inventory updates as sales, returns, and transfers happen. Shopify

If you tell me roughly how many SKUs you have, whether you already use a POS, and whether online orders need to ship from whichever store has stock, I can narrow it down to the best 1–2 options.

For three retail stores + one ecommerce site + simple per-store inventory, I’d shortlist these:

My recommendation

I'd choose Shopify if ecommerce is the priority. It gives you a clean model like:

• Store A: 24 units
• Store B: 12 units
• Store C: 8 units
• Online availability: based on whatever locations you designate
• In-store sales automatically reduce that store's inventory
• Transfers can move stock between locations

Shopify currently supports separate inventory tracking by location and order routing across locations. Shopify Help Center

I'd choose Square if your three physical stores are the center of the business and you mainly want a simple POS + online shop. Square specifically supports real-time inventory synchronization across locations and online. Square

If you tell me (1) approximate number of SKUs, (2) whether you already use a POS, and (3) whether customers need “buy online, pick up at Store A/B/C,” I can tell you which of Shopify vs. Square is the better fit.

For three retail stores with simple multi-location inventory, I’d shortlist these:

My recommendation for your situation

For three stores and “simple” multi-location inventory, I would start with:

1. Shopify + Shopify POS — likely the best balance of:

• one ecommerce site
• three store locations
• inventory by store
• online orders fulfilled from stores
• easy staff adoption

Shopify supports separate inventory quantities by location and lets you manage fulfillment from different locations. Shopify Help Center

2. Lightspeed Retail + eCom — choose this instead if:

• most sales happen in-store
• you need stronger retail controls
• you do frequent transfers between stores
• your catalog is large or SKU-heavy

LightspeedA few questions would narrow it down:

• What type of retail are you (apparel, specialty goods, furniture, etc.)?
• Roughly how many SKUs?
• Do the three stores already use a POS system?
• Do you need buy online/pick up in store (BOPIS) or just keep inventory counts synced?

For three retail stores + a simple online store + location-level inventory, I’d shortlist these:

1. Shopify — best overall fit. Shopify keeps ecommerce, POS, and inventory in one system. You can maintain separate quantities for each store, transfer stock between locations, and route online orders based on inventory. Shopify Shopify Help Center

shopify.com

2. Square — best if the stores/POS are the priority. Square supports location-level stock, transfers, and cross-location fulfillment, with a relatively simple setup. Its ecommerce capabilities are less extensive than Shopify's. Square Square

squareup.com

3. Lightspeed Commerce — worth considering if inventory/POS complexity will grow. It has strong multi-store inventory and transfer functionality, but its ecommerce inventory model can be more complicated than Shopify's. Lightspeed Retail Lightspeed

My recommendation

Go with Shopify unless you already have a strong reason to use Square or Lightspeed. For only three stores, Shopify gives you the cleanest architecture:

Store A inventory ↔ Store B inventory ↔ Store C inventory ↔ Online store

while keeping sales and inventory synchronized rather than requiring a separate inventory system. Shopify Help Center Shopify Help Center

If you tell me (1) approximate number of SKUs, (2) whether you need POS at all 3 stores, and (3) whether online orders should be able to ship from any store, I can narrow it down to the best specific plan/setup.

For three retail stores + one ecommerce site + simple inventory by location, I’d shortlist these:

1. Shopify — best overall fit.

Shopify natively tracks inventory separately at each location, supports inventory transfers, and can use your stores as fulfillment locations. It also integrates the online store with Shopify POS. help.shopify.com
Shopify

2. Square — best if your physical stores/POS are the priority.

Square gives you location-specific inventory, real-time stock across locations/channels, and cross-location fulfillment. squareup.com
Square for Retail

3. Lightspeed — best if you need more sophisticated retail inventory.

It is particularly strong for multi-store retail, with real-time cross-location inventory, transfers, and multi-channel selling. www.lightspeedhq.com
Lightspeed Retail

My pick

Go with Shopify if your primary goal is a good ecommerce experience with straightforward three-store inventory management. You don't need a complicated ERP: create Store A, Store B, Store C, assign stock to each, and let Shopify manage online fulfillment/order routing. Shopify's current documentation specifically supports the three-store scenario. help.shopify.com

If your stores already run heavily on Square POS, I'd lean Square instead to avoid introducing a separate retail system.

If you tell me (1) what POS you use today, (2) approximate SKU count, and (3) whether customers need to see “in stock at Store A/B/C,” I can tell you which one I'd choose and what the simplest setup would look like.

For three retail stores + a straightforward online store + simple inventory by location, I’d shortlist Shopify and Square, with Shopify as my default pick.

My recommendation: Shopify

Shopify is probably the best fit if ecommerce is the priority.

• You can create all three stores as separate inventory locations.
• Inventory is tracked independently at each location and synced with the online store. Shopify Help Center Shopify
• Shopify POS handles in-store sales, returns, exchanges, and inventory updates alongside ecommerce. Shopify Help Center
• You can transfer stock between locations and manage inventory from one admin.
• It gives you a much stronger ecommerce platform if you expect the online business to become significant.

shopify.com

When I'd choose Square instead

Square is attractive if your physical stores/POS are the main business and ecommerce is relatively simple.

Square supports real-time inventory across locations and online, location-specific stock views, transfers, purchase orders, and cross-location fulfillment. Square Square

squareup.com

Quick decision

Bottom line: If you want one system where the website is the center of the business and the three stores are inventory/POS locations, go with Shopify. If the stores are the center and you mainly need a simple web shop, Square may be simpler and cheaper operationally.

If you tell me what you sell, approximate SKU count, and whether you need BOPIS/local pickup, I can narrow this to the exact plan/setup I'd use.

For three retail stores with simple multi-location inventory, I’d shortlist these options:

My recommendation for your situation

For only three stores and “simple” inventory, I would usually choose:

1. Shopify + Shopify POS if your main goal is growing ecommerce (online sales, marketing, customer accounts, shipping, pickup). It keeps the website and store inventory in one ecosystem. Shopify
2. Square for Retail if you want the easiest setup and your stores are the center of the business. Square
3. Lightspeed if you expect more retail complexity soon (lots of SKUs, purchase orders, transfers between stores, vendor management). Lightspeed

A few questions would narrow it down:

• Do your stores already use a POS system (Square, Clover, Shopify POS, Lightspeed, etc.)?
• Roughly how many SKUs do you carry (100, 1,000, 10,000+)?
• Do you need customers to see store-by-store availability online and/or buy online and pick up at any store?

For three retail stores with simple multi-location inventory, I’d shortlist these three options:

My recommendation for your scenario

For three stores and “simple” multi-location inventory, I would usually choose:

1. Square for Retail — if you want the fastest, simplest setup:

• Each store has its own inventory count
• Sales reduce inventory automatically
• Staff training is straightforward
• Good if your catalog is not highly complex Square
• Shopify + Shopify POS — if ecommerce growth is the priority:

• Best if online sales are expected to become a major channel
• Good unified customer/order experience
• Supports separate inventory by location Shopify Help Center
• Lightspeed Retail — if your “simple” inventory still involves:

• frequent transfers between stores
• lots of SKUs/variants
• purchase orders from vendors
• deeper store-by-store reporting Lightspeed

A practical rule:

• <1,000 SKUs, straightforward products → Square
• Online-first + stores → Shopify
• Inventory is the operational headache → Lightspeed

If you tell me your product type (apparel, specialty retail, furniture, electronics, etc.), approximate SKU count, and whether you already use a POS, I can narrow it to one.

For three retail stores with simple multi-location inventory, I’d shortlist these:

My recommendation for a three-store retailer:

• Choose Shopify + Shopify POS if your main goal is growing ecommerce and letting stores share the same catalog.
• Choose Square for Retail if your stores are straightforward (hundreds of SKUs, basic transfers, simple checkout) and you want the easiest operation.
• Choose Lightspeed Retail if inventory accuracy is critical (many SKUs, variants, frequent transfers between stores, purchasing from vendors).

For most small-to-mid retailers with three locations and “simple multi-location inventory,” I’d start with Square for Retail or Shopify rather than jumping to a heavier retail ERP. Square TechnologyAdvice

A few details would change the answer:

1. Roughly how many SKUs do you carry (100, 1,000, 10,000+)?
2. Do you already have an ecommerce site (Shopify, WooCommerce, etc.)?
3. Do stores need ship-from-store / buy-online-pickup-in-store, or just shared inventory visibility?

For three retail stores + a simple online store + separate inventory by location, I’d shortlist Shopify and Square, with Shopify as the default choice.

• Shopify — best overall fit. It natively tracks inventory separately at each location, supports transfers between stores, and can connect each store to Shopify POS. Shopify explicitly supports the use case of three retail locations with separate stock counts. Shopify Help Center Shopify Help Center

shopify.com

• Square for Retail — best if your physical stores/POS are the priority. Square syncs inventory across locations and online in real time and lets you view/filter stock by location and transfer inventory between locations. Square Square

squareup.com

My pick

Choose Shopify if e-commerce is the main system and the stores are extensions of the online business.

Choose Square if the three physical stores are the core business and you want a particularly straightforward retail POS + inventory setup.

For your description—“simple multi-location inventory”—I wouldn't jump to a heavy inventory/ERP platform. Shopify or Square should be sufficient.

If you tell me your approximate SKU count, whether you already use a POS, and whether customers need store pickup, I can narrow it down to the best specific plan/setup.

For 3 retail stores + an ecommerce site + simple per-location inventory, I’d shortlist these:

My recommendation: Shopify

If your main objective is selling online while keeping three stores' inventory separate, Shopify is probably the cleanest fit. You can have:

• Store A: 25 units
• Store B: 12 units
• Store C: 8 units
• Online orders routed based on available inventory/location
• In-store sales updating that store's inventory
• Transfers between stores when you rebalance stock

Shopify explicitly supports separate inventory quantities for each location and inventory transfers between locations. help.shopify.com

Shopify

One important distinction: if you already have Square terminals/POS in all three stores, I'd lean toward Square instead of introducing Shopify POS. Square lets you filter inventory by location and transfer stock between locations. squareup.com

If you tell me (1) what POS you use today, (2) roughly how many SKUs, and (3) whether customers need buy-online/pick-up-in-store, I can narrow this to the best 1–2 options.

For three retail stores + one ecommerce site + straightforward inventory by location, I’d shortlist Shopify and Square, with Shopify as the better default if ecommerce is the priority.

My pick: Shopify

Shopify is particularly well suited if your goal is to have one product catalog with inventory quantities separately tracked at each of the three stores. Shopify says inventory is tracked independently by location and synced in real time across POS, the online store, and other sales channels. It also supports transfers between locations. Shopify Shopify Help Center

shopify.com

When I'd choose Square instead

Square is compelling if the physical stores/POS are the center of the business and ecommerce is relatively simple. Square supports real-time inventory across locations, stock transfers, purchase orders, low-stock alerts, and online selling. squareup.com squareup.com

squareup.com

Bottom line: If you tell me what you're selling, approximate number of SKUs, whether you already have a website, and whether each store needs its own POS, I can narrow this down to the best specific setup (including the likely plan/cost).

For three retail stores with simple multi-location inventory, I’d shortlist these three:

My recommendation for your situation:

• If you have three stores, a modest SKU count, and want something easy for staff → Square for Retail is probably the best fit. It handles the basics: inventory by location, sales, online orders, and store reporting without much complexity. getstash.io
• If your website is the main growth channel and stores are extensions of ecommerce → Shopify + Shopify POS. technologyadvice.comtechnologyadvice.com
• If you have lots of SKUs, frequent transfers between stores, size/color variants, or need stronger purchasing workflows → Lightspeed Retail. technologyadvice.com

For a 3-location retailer, I’d usually avoid jumping to an ERP unless you have complex warehousing or wholesale needs.

A few questions would narrow it down:

1. Roughly how many products/SKUs do you carry (100, 1,000, 10,000+)?
2. Do all three stores sell the same products, or does each location have its own assortment?
3. Do you already have an ecommerce site (Shopify, WooCommerce, etc.)?

For three retail stores + a straightforward ecommerce site + inventory tracked separately by store, I’d shortlist these:

My recommendation

I'd pick Shopify if "simple" is the key requirement.

For your three stores, you can set up:

• Store A → its own inventory quantity
• Store B → its own inventory quantity
• Store C → its own inventory quantity
• Online store → fulfillment/order routing across those locations
• POS at each store → sales automatically decrement the appropriate location

Shopify explicitly supports separate inventory quantities by location and real-time syncing across POS, online store, and sales channels. Shopify Shopify Help Center

Square would be my choice if you care more about the in-store checkout experience and less about having a particularly powerful ecommerce operation.

If you tell me roughly how many SKUs you have, whether you already use a POS, and whether online orders need to ship from whichever store has stock, I can tell you which of the three I'd actually choose for your setup.

For three retail stores + a straightforward ecommerce site + inventory tracked separately by store, I’d shortlist these:

My pick: Shopify

For your use case, Shopify is probably the sweet spot. You can create three locations—Store A, B, and C—and maintain quantities independently. For example:

• Store A: 12 units
• Store B: 4 units
• Store C: 0 units
• Online: availability based on whichever locations you choose to make available

Shopify also supports using the physical stores as fulfillment locations, order routing, and POS, so you're not bolting a separate inventory system onto the ecommerce platform. help.shopify.com

If “simple” is the #1 priority, I'd compare Shopify vs. Square. If you tell me (1) what POS you use today, (2) approximate number of SKUs, and (3) whether customers need buy-online/pickup-in-store, I can tell you which one I'd choose and what plan/setup you'd need.

For three retail stores with simple multi-location inventory, I’d focus on platforms that combine ecommerce + POS + location-level stock tracking rather than a heavy enterprise inventory system.

Best fits:

My recommendation for your situation

For only three stores and “simple” inventory, I would shortlist:

1. Shopify + Shopify POS — likely the best overall fit
   • One product catalog
   • Three inventory locations
   • Online orders can pull from store stock
   • Staff can check inventory across stores
   • Easier employee training and support ecosystem

help.shopify.com

2. Square Online + Square Retail — if your stores already run on Square terminals
   • Lowest operational friction
   • Good if ecommerce is an extension of your physical stores

3. BigCommerce — if ecommerce growth is the main priority
   • Better suited if you expect a larger online catalog, multiple storefronts, or more complex selling channels. www.bigcommerce.comwww.bigcommerce.com

A few questions would change the recommendation:

• Are your stores already using a POS system (Square, Clover, Lightspeed, etc.)?
• Do you need buy online/pick up in store (BOPIS)?
• Roughly how many SKUs do you carry (100, 1,000, 10,000+)?
• Do all three stores share the same products, or does each store have its own inventory?

For three retail stores with simple multi-location inventory, I’d shortlist these:

My recommendation for a three-store retailer:

1. Pick Shopify if your main goal is growing online sales:
   • Website/storefront is the priority
   • Stores mainly need inventory visibility
   • You want lots of integrations and marketing tools

Shopify’s multi-location inventory is likely enough for a simple three-store setup. help.shopify.com

2. Pick Square for Retail if your stores are the center of the business:
   • You sell mostly in person
   • You want easy checkout + online store together
   • Your catalog is not extremely complex

squareup.com

3. Pick Lightspeed if you need more retail operations:
   • Frequent stock transfers between stores
   • More detailed inventory reporting
   • Larger SKU counts or plans to expand

www.lightspeedhq.comwww.lightspeedhq.com

For a typical 3-location retailer, I’d start by evaluating Shopify + Shopify POS versus Square for Retail. Lightspeed is the upgrade path if inventory complexity grows.

A few questions would narrow it down:

• Do you already have a POS system in the stores (Square, Clover, Lightspeed, Shopify POS, etc.)?
• Roughly how many SKUs do you carry (100, 1,000, 10,000+)?
• Do you need customers to see “available at Store A/B/C” and reserve for pickup?

For three retail stores + a straightforward ecommerce site + inventory tracked separately by store, I’d shortlist Shopify first.

Best fit: Shopify

Shopify supports multiple physical locations natively. You can:

• Track inventory separately at each of the 3 stores.
• See inventory by location in the admin.
• Sell in-store through Shopify POS while keeping inventory synchronized.
• Route online orders to locations based on inventory and your fulfillment rules.
• Transfer stock between stores. help.shopify.com

That makes it a good fit if your requirement is basically “one ecommerce catalog, three stores, one inventory system.”

The main alternative: Square

Square is worth considering if your physical retail/POS operation is more important than the ecommerce experience. Square supports multiple locations, location-level inventory, transfers between stores, and cross-location fulfillment. squareup.com

My quick recommendation:

One important distinction: if by “simple multi-location inventory” you mean each store has its own quantity and online orders should know which store has stock, Shopify handles that natively—you likely don't need a specialized inventory-management system. help.shopify.com

If you tell me roughly how many SKUs you have, whether the three stores already use a POS, and whether customers need “buy online, pick up at Store A/B/C,” I can narrow this down to the best 2–3 options and the likely monthly cost.

For three retail stores with simple multi-location inventory, I’d narrow it to three good fits:

My recommendation by scenario:

• You mainly want an online store and your three stores just need stock counts: choose Shopify. It is usually the cleanest ecommerce foundation. help.shopify.com
• You want the simplest “sell online + ring sales in stores + keep inventory synced” setup: choose Square. squareup.com
• Your stores are the core business (apparel, gifts, specialty retail, lots of SKUs, transfers between stores): choose Lightspeed. www.lightspeedhq.com

For a typical three-store retailer, I’d start by evaluating Shopify vs Square and only move to Lightspeed if you need more advanced retail controls.

A few questions would change the answer:

1. Are your stores already using a POS system (and which one)?
2. Roughly how many SKUs do you have (100, 1,000, 10,000+)?
3. Do you need customers to see “available at Store A / Store B” online or just internal inventory tracking?

For 3 retail stores + a straightforward ecommerce site + shared inventory, I’d shortlist these:

My pick: Shopify

If ecommerce is important and the stores are essentially three inventory locations, I'd choose Shopify.

You can set up:

• Store A → its own inventory
• Store B → its own inventory
• Store C → its own inventory
• Online store → shared visibility into those locations
• Transfers between stores
• Real-time inventory adjustments when something sells in-store or online
• BOPIS / ship-from-store later if you need it

Shopify specifically supports assigning inventory to individual retail locations and managing it centrally; it can handle up to 1,000 stores, so three is well within its intended model. www.shopify.comwww.lightspeedhq.comwww.shopify.comsquareup.com

Square would be my alternative if your ecommerce needs are relatively basic and you want the simplest retail/POS experience. Square can also filter and manage stock by location and supports cross-location fulfillment. squareup.com

If you tell me roughly how many SKUs you have, whether you already use a POS, and whether online orders should be fulfilled from any of the 3 stores, I can tell you which one I'd pick and what plan/setup you'd actually need.

For three retail stores + a simple ecommerce site + location-level inventory, I’d shortlist Shopify and Square, with Shopify as my default recommendation.

My pick: Shopify

Shopify supports inventory separately by location, so you can have:

• Store A: 24 units
• Store B: 11 units
• Store C: 7 units
• Online orders automatically routed according to your fulfillment rules
• Inventory updated from both online and in-store sales
• Transfers between locations
• Shopify POS for the physical stores

Shopify explicitly supports retail stores as inventory locations and lets you track quantities independently at each one. help.shopify.com It also supports inventory transfers between locations. help.shopify.com

When I'd choose Square instead

Square is particularly attractive if your three stores are the center of the business and ecommerce is secondary.

Square lets you view stock by location, adjust inventory, and transfer stock between locations. squareup.com It also supports fulfilling an order from another location when the original store is out of stock. api.squareup.com

Quick decision

For your specific description, I'd start with Shopify. Three locations is well within its intended multi-location inventory model, and you don't need a complicated inventory-management system just to accomplish this. Shopify currently advertises multi-location inventory across up to 1,000 warehouses, fulfillment centers, and stores. www.shopify.com

If you tell me what you sell, whether the three stores already use a POS, and roughly how many SKUs you have, I can narrow this down to the best Shopify vs Square vs Lightspeed setup and the likely monthly cost.

For 3 retail stores + an ecommerce site + simple per-store inventory, I’d pick Shopify.

Best fit: Shopify + Shopify POS

Shopify supports separate inventory quantities for each location, so you can see, for example:

• Store A: 12 units
• Store B: 4 units
• Store C: 0 units
• Online/warehouse: 20 units

Inventory updates as products are sold, returned, or transferred, and Shopify POS can be assigned to each physical location. help.shopify.comwww.lightspeedhq.com

Shopify

How I'd rank the alternatives

Lightspeed is particularly strong for multi-location retail, with real-time cross-location inventory and stock transfers, but it is more retail-management-oriented than you may need. www.lightspeedhq.com

My recommendation: If you don't need complex purchasing, warehouse management, or advanced retail workflows, go with Shopify. Three stores is well within the kind of multi-location setup Shopify is designed for. help.shopify.com

If you tell me what you sell and whether you already have a website/POS, I can narrow it down between Shopify, Square, and Lightspeed—including likely monthly cost.

For 3 retail stores + a simple ecommerce site + inventory tracked separately by store, I’d shortlist these:

My pick: Shopify

Shopify is probably the best fit if ecommerce is the priority.

• Set up each of your 3 stores as a separate inventory location.
• Track stock independently at each location.
• In-store sales through Shopify POS can automatically reduce that store's inventory.
• Online orders can be routed based on inventory/location rules.
• You can transfer inventory between locations. help.shopify.com
• Shopify currently supports multi-location inventory across up to 1,000 warehouses, fulfillment centers, and stores. www.shopify.com

Consider Square if your stores are the priority

Square is especially attractive if you already want Square POS/payment hardware in the stores. Its retail inventory tools let you filter stock by location, adjust stock, and transfer inventory between stores. squareup.com

Quick decision

For your description, I'd start with Shopify. You don't need a complicated multi-warehouse/ERP system just because you have three stores; Shopify's native location model covers the basic use case cleanly. help.shopify.com

If you tell me what you sell, approximate number of SKUs, and whether you already use a POS system, I can narrow it down between Shopify, Square, and a couple of alternatives.

For three retail stores + a simple ecommerce site + inventory tracked separately by store, I’d lean toward Shopify.

Best fit: Shopify

Why it fits:

• Multi-location inventory is built in — you can create each store as a location and track quantities independently. help.shopify.com
• Online and in-store sales stay synchronized, including Shopify POS sales at each physical store. www.shopify.com
• You can see inventory by location and transfer stock between locations. www.shopify.com
• Online orders can be routed to locations based on inventory availability and fulfillment rules. help.shopify.com
• It isn't overly complicated for only three stores; you can start relatively simple and add more sophisticated fulfillment later.

Also worth considering: Square

Square for Retail is a strong alternative if your physical stores/POS are more important than the ecommerce side. It supports real-time inventory synchronization across locations and online, plus transfers and cross-location fulfillment. squareup.com

My recommendation

For your stated requirement, I'd choose Shopify. Its native location model is almost exactly what you described: Store A, Store B, Store C, each with its own stock quantity, all feeding one ecommerce operation. help.shopify.com

If you tell me what you sell, approximate number of SKUs, and whether you already use a POS system, I can narrow this down to the best specific Shopify/Square setup and likely plan.

For three retail stores with simple multi-location inventory, I’d shortlist these:

My likely recommendation for your situation:

• If your priority is selling online + keeping inventory synced across 3 stores → choose Shopify. It’s the cleanest ecommerce platform with multi-location inventory built in. help.shopify.com
• If your priority is running the stores first and adding a basic online shop → choose Square. squareup.com
• If you have lots of SKUs, frequent transfers between stores, purchasing workflows, or complex inventory rules → choose Lightspeed. www.lightspeedhq.com

For a three-store retailer with “simple” inventory, I would usually start with Shopify + Shopify POS or Square for Retail, rather than jumping to a heavier retail ERP.

A few details would change the recommendation:

1. Do your three stores already use a POS system (Square, Clover, Lightspeed, etc.)?
2. Roughly how many products/SKUs do you carry?
3. Do you need customers to see “available at Store A/B/C” online, or just a combined inventory count?

For three retail stores with simple multi-location inventory, I’d shortlist these:

My recommendation for your situation:

• Pick Shopify if your priority is “launch a good online store and keep the three stores’ inventory visible.” It is likely the easiest path for a small multi-location setup. help.shopify.com
• Pick Square if your stores are simple (small catalog, straightforward sales, minimal purchasing/transfer needs). squareup.com
• Pick Lightspeed if each store has meaningful inventory movement and you care about store-to-store transfers, reporting, and retail controls. www.lightspeedhq.com

For three locations, I’d usually avoid overbuilding with an enterprise inventory system. A good starting architecture is:

Ecommerce site + POS + shared inventory

• Store 1 inventory
• Store 2 inventory
• Store 3 inventory
• Online inventory pool (with rules for where orders fulfill from)

A few questions would narrow this down:

1. Do your three stores already use a POS system (Square, Clover, Lightspeed, etc.)?
2. Roughly how many SKUs do you carry (50, 500, 5,000+)?
3. Do you need customers to see “available at Store A” and “buy online, pickup in store”?

For three retail stores + an online shop + straightforward per-store inventory, I’d shortlist these:

My pick: Shopify

If ecommerce is important, I'd go with Shopify + Shopify POS. You can set up Store 1, Store 2 and Store 3 as separate inventory locations, and sales at each location automatically update that location's stock. Shopify also supports transfers between locations and online fulfillment rules. help.shopify.comhelp.shopify.com

If you're primarily brick-and-mortar and just need a basic web store, I'd lean Square instead.

Rule of thumb:

• 🛒 Online-first / omnichannel → Shopify
• 🏪 Retail/POS-first → Square
• 📦 More sophisticated retail operations → Lightspeed

If you tell me roughly how many SKUs you have, whether you already have a website, and whether each store needs its own POS, I can narrow it down to one.

For three retail stores + a simple online store + inventory tracked separately by store, I’d shortlist Shopify and Square, with Shopify as my default choice.

My recommendation: Shopify

Shopify supports separate inventory quantities for each physical location, so you could have Store 1 / Store 2 / Store 3 and see the stock for each independently. Online orders can be routed to locations based on inventory and fulfillment rules. help.shopify.com

It also gives you Shopify POS for the three stores, meaning your in-store sales can decrement the same inventory that your ecommerce site uses. help.shopify.com

Shopify

When I'd choose Square instead

Square is particularly attractive if your physical stores/POS are more important than the ecommerce side. Square can filter inventory by location, track stock per location, transfer inventory between stores, and even fulfill an order from another location when one store is out of stock. squareup.com

Square

Bottom line: If you're primarily looking for an ecommerce platform that happens to have three stores, I'd go Shopify. If you're primarily a three-location brick-and-mortar retailer that wants a web store, I'd seriously consider Square.

If you tell me roughly how many SKUs you have and whether the three stores already use a POS, I can narrow it down to the best specific plan/setup.