ChatGPT answers, unedited

If you mean low-cost + easy setup + genuinely free starter tier, I’d shortlist these:

• uppromote.com — best overall for Shopify merchants. Its Free plan is $0 indefinitely and includes one affiliate program, up to $3,000/month in referral sales under review, link/coupon tracking, analytics, and fraud detection. Paid plans start at $29.99/month + 2% of successful referral sales. UpPromote UpPromote Docs
• goaffpro.com — best if you want the most generous free tier. Its Hobby plan is free, with unlimited affiliates, sales, and revenue. It's particularly straightforward for Shopify, and its paid tier adds third-party integrations and more advanced features. Goaffpro Shopify App Store

My pick

UpPromote if the merchant is on Shopify and wants a polished, easy-to-start affiliate program with a clear path to scaling. Its free tier is quite capable, and the paid pricing remains relatively low for a small store. UpPromote

If by “common shopping carts” you specifically mean Shopify + WooCommerce + BigCommerce, tell me which carts you need and I can compare the best genuinely free options across all three.

If you mean software for a merchant to run their own affiliate/referral program, my top low-cost pick is Affiliatly.

• Affiliatly — free plan with up to 50 tracked orders, then $16/month for unlimited orders and up to 50 affiliates. It supports checkout plus integrations such as PayPal, Klaviyo, Mailchimp, ReCharge, and Zapier. apps.shopify.com
• Simple Affiliate Marketing — particularly attractive for Shopify merchants: free to install, with up to 10 affiliates on the starter tier; paid plans start at $19/month. apps.shopify.com
• LinkQuill — worth considering if you need broader cart coverage. It advertises integrations with Shopify, WooCommerce, Square, and more, with a $0/month plan, unlimited affiliates/tracking, and all integrations, but charges a 5% revenue share on the free tier. www.linkquill.netapps.shopify.com

Bottom line: For a small Shopify store, I'd start with Affiliatly for the combination of genuinely free entry, low paid pricing, and straightforward integration. If multiple shopping carts (especially Shopify + WooCommerce + Square) are important, LinkQuill looks more compelling. www.linkquill.netapps.shopify.com

If you tell me which cart you're using (Shopify, WooCommerce, Wix, BigCommerce, Square, etc.), I can narrow it to the cheapest 2–3 options for that platform.

For a small merchant, GoAffPro looks like the strongest fit.

• Free starter plan: Its Hobby plan is permanently free, with unlimited affiliates, sales, and revenue. docs.goaffpro.com
• Easy integrations: It supports Shopify, WooCommerce, BigCommerce, Wix, Magento, Ecwid, Squarespace, Webflow, and several other ecommerce platforms. goaffpro.comuppromote.com
• Low cost as you grow: There’s no percentage-of-sales fee on the free plan, and the paid tier adds more advanced features. docs.goaffpro.com
• Good basics included: Affiliate links, coupon tracking, commissions, analytics, and PayPal payouts are available. docs.goaffpro.com

Two alternatives

UpPromote's free plan is more feature-rich in some areas, but its free tier caps approved referral orders at 200/month. BixGrow has a very inexpensive paid tier but tighter limits on its free plan. uppromote.com

Bottom line: If your priority is “I want to plug affiliate marketing into my existing cart without paying until the business proves it works,” I'd start with GoAffPro. Its unusually generous unlimited free tier and broad cart compatibility make it particularly attractive for small merchants. goaffpro.comuppromote.com

GoAffPro official site

If your priority is low cost + easy setup + a genuinely free starter tier, I’d shortlist these:

My pick: GoAffPro

GoAffPro is probably the best match for your description. Its free Hobby plan currently supports unlimited affiliates, unlimited sales, and unlimited revenue, and it's specifically designed to let merchants launch an affiliate program quickly. Goaffpro Shopify App Store

It also supports integrations beyond Shopify, including WooCommerce account syncing, plus tools such as Mailchimp, Klaviyo, Omnisend, PayPal and several checkout/subscription platforms. GoAffPro Help Center

goaffpro.com

UpPromote is my second choice, particularly if you're on Shopify. Its free plan includes link/coupon tracking, analytics, fraud protection and up to $3,000 in referral sales per month. UpPromote Shopify App Store

uppromote.com

Bottom line: For a small merchant trying to spend $0 initially, I'd start with GoAffPro. If you're specifically on Shopify and expect less than $3,000/month in affiliate-generated sales, UpPromote is also very compelling.

If you tell me whether your cart is Shopify, WooCommerce, BigCommerce, Wix, Squarespace, etc., I can narrow this to the best 2–3 options for that platform.

If you're looking for low cost + easy setup + a genuinely free starter tier, I’d shortlist these:

My pick: GoAffPro

For a small merchant trying affiliate marketing without committing to monthly costs, GoAffPro is probably the simplest starting point. Its free Hobby plan includes unlimited affiliates, unlimited sales/revenue, affiliate tracking, commissions, coupons, and a basic affiliate portal. The paid Premium tier is currently $49/month. docs.goaffpro.comapps.shopify.com

It also has a Shopify app with a 4.6/5 rating from 880+ reviews, and the app is designed to get a store's affiliate program running quickly. apps.shopify.com

When I'd choose UpPromote instead

UpPromote is attractive if you're on Shopify and want more sophisticated functionality as you grow. Its free tier includes affiliate-link/coupon tracking, analytics and fraud detection, but is capped at $3,000 in referral sales per month. Its Growth plan is $29.99/month plus 2% of successful referral sales. uppromote.com

Bottom line: For the lowest-risk starting point, GoAffPro wins. If you expect to need more sophisticated affiliate/referral features relatively soon, UpPromote is worth considering.

One caveat: if by "common shopping carts" you mean Shopify + WooCommerce + BigCommerce + Magento, rather than Shopify specifically, I’d compare a different set of tools because these two are particularly Shopify-oriented.

If you mean an affiliate marketing management tool for a small online store, a few low-cost options stand out because they combine easy shopping-cart integrations with free starter plans:

Best overall starting picks:

• Shopify store: GoAffPro or Simple Affiliate Marketing are usually the easiest “install and go” choices. apps.shopify.comapps.shopify.com
• WooCommerce or mixed platforms: Affiliatly or LinkQuill are worth considering because of broader integrations. www.linkquill.netwww.affiliatly.com
• Very small merchant testing affiliates for the first time: Start with a free tier and avoid tools that charge a large monthly fee before you have sales.

If you tell me your cart (Shopify, WooCommerce, BigCommerce, Wix, Squarespace, etc.) and approximate monthly orders, I can narrow it down.

If you mean an affiliate management tool for a small online merchant (not an affiliate network for publishers), a few low-cost options with free entry tiers stand out:

Quick recommendation:

• Shopify store: Start with Simple Affiliate Marketing, Affiliatly, or Refero because setup is usually the fastest. apps.shopify.com
• Shopify + WooCommerce/Square or multiple carts: Look at LinkQuill or a more flexible platform. www.linkquill.net
• Just validating an affiliate program with minimal cost: Udeely’s free tier is designed for early programs. www.udeely.comrefero.appapps.shopify.com

For a typical small merchant, I’d shortlist Affiliatly (more established tracking options) and Simple Affiliate Marketing (simplest Shopify experience). apps.shopify.comapps.shopify.com

If you’re a small merchant looking for a low-cost affiliate tool with easy shopping-cart integration and a free starter plan, these are some strong options:

My shortlist by situation:

• Cheapest/easiest Shopify start: GoAffPro — good if you want to launch quickly with minimal setup. apps.shopify.com
• Simple affiliate tracking for a tiny store: Affiliatly — the free tier is designed for early programs. apps.shopify.com
• Need Shopify + WooCommerce/Square flexibility: LinkQuill is worth considering. www.linkquill.net
• Mostly influencer/referral campaigns on Shopify: Simple Affiliate Marketing is a straightforward option. apps.shopify.com

If you tell me your cart platform (Shopify, WooCommerce, BigCommerce, Wix, etc.) and approximate affiliate count, I can narrow it down to the best fit.

If you mean an affiliate-management tool for a small ecommerce merchant, my top pick is GoAffPro.

• Cost: Free Hobby plan; paid plans start around $49/month. www.modash.io
• Integrations: Shopify, WooCommerce, BigCommerce, Wix, Squarespace, and other common ecommerce platforms. www.modash.io
• Free tier: The Hobby plan is a genuine free tier rather than merely a trial, with unlimited affiliates and support for merchants doing under 100 orders/day. www.modash.io
• Best for: A small merchant who wants to launch an affiliate program without committing to monthly software costs.

Another strong option: Affiliatly is particularly attractive if you're on Shopify. Its free plan supports up to 50 tracked orders, while its first paid tier is only $16/month. apps.shopify.com

Bottom line:
GoAffPro = better choice if you want broad shopping-cart compatibility.
Affiliatly = better if you're primarily Shopify and want an especially inexpensive upgrade path.

A strong fit is GoAffPro.

• Free starter plan: Its Hobby plan is permanently free, with unlimited affiliates, sales, and revenue; it’s aimed at merchants with fewer than 100 daily orders. www.goaffpro.com
• Easy integrations: It supports a broad range of carts/platforms, including Shopify, WooCommerce, BigCommerce, Wix, Magento, PrestaShop, Ecwid, Squarespace, Webflow, and more. goaffpro.com
• Simple setup: GoAffPro says its integrations can be installed in minutes, without requiring custom development for common platforms. www.goaffpro.com
• Good for small merchants: Unlike some competitors, the free tier doesn't impose a referral-order cap, so you can test affiliate marketing without immediately paying as sales grow. uppromote.comuppromote.com
• Shopify: It has a dedicated Shopify app with a free plan and a 4.6/5 rating from 882 reviews at the time of the latest listing crawl. www.goaffpro.comapps.shopify.com

Runner-up: UpPromote is also free and particularly polished for Shopify, but its free tier has a 200 referral-order/month limit, making GoAffPro the better choice if keeping costs at $0 is the priority. uppromote.comuppromote.com

GoAffPro official site

If you tell me which shopping cart you use (Shopify, WooCommerce, BigCommerce, etc.), I can narrow it down to the cheapest 2–3 options for that specific cart.

If your priority is low cost + easy integration + a genuinely free starter plan, I’d pick GoAffPro.

• Free plan: $0, with unlimited affiliates, sales, and revenue; it’s specifically positioned for smaller merchants. docs.goaffpro.comgoaffpro.com
• Broad cart support: It supports Shopify, WooCommerce, BigCommerce, Wix, Magento, PrestaShop, Ecwid, Squarespace, Webflow, and several others—much broader than Shopify-only alternatives. goaffpro.com
• Easy setup: GoAffPro advertises one-click integrations and setup in minutes. www.goaffpro.com
• Room to grow: Its paid tier adds things like third-party integrations, advanced affiliate management, and automation. docs.goaffpro.comgoaffpro.com

Runner-up: UpPromote — also has a $0 plan and is very beginner-friendly, but it's primarily Shopify-focused, so GoAffPro is the better choice if “common shopping carts” means you may use something other than Shopify. docs.uppromote.com

GoAffPro official site

Bottom line: For a small merchant wanting to start an affiliate program without paying upfront and avoid being locked into one ecommerce platform, GoAffPro is probably the best fit.

For a small merchant, GoAffPro looks like the strongest fit.

• Free starter plan: Its Hobby plan is genuinely free, with unlimited affiliates, sales, and revenue. docs.goaffpro.comgoaffpro.com
• Low-cost upgrade: Premium is currently $49/month if you outgrow the free tier. docs.goaffpro.comgoaffpro.com
• Easy ecommerce integration: It has a dedicated Shopify app, and its integrations cover major ecommerce platforms including WooCommerce, BigCommerce, Wix, PrestaShop, Webflow, Ecwid, Squarespace, Magento, Weebly, Square, and Shoplazza. apps.shopify.com
• Good starter feature set: Affiliate portal, commission rules, coupon tracking, analytics, and PayPal payouts are available, with the free plan aimed at smaller merchants. docs.goaffpro.com

Runner-up: UpPromote. It also has a free plan, but its next tier is $29.99/month plus 2% of successful referral sales, so GoAffPro is generally cheaper once you're generating meaningful affiliate revenue. uppromote.com

Bottom line: If your priority is easy setup + broad shopping-cart compatibility + no-cost starting point, I'd start with GoAffPro. GoAffPro official site

If your priority is low cost + easy integration with multiple common shopping carts + a genuinely free starter plan, GoAffPro is probably the best fit.

Why GoAffPro

• Free Hobby plan: $0, with unlimited affiliates, sales, and revenue; it’s aimed at merchants doing under 100 daily orders. docs.goaffpro.com
• Broad cart/platform support: Shopify, WooCommerce, BigCommerce, Wix, Magento, PrestaShop, Ecwid, Squarespace, Webflow, and others. goaffpro.com
• Easy setup: it has installation paths for Shopify, WooCommerce, BigCommerce, Wix, etc., plus manual/custom integrations. docs.goaffpro.com
• Low-cost upgrade: its current Premium plan is $49/month, although the company's comparison pages still show older $29 pricing, so I'd use the current pricing page as the authoritative figure. www.goaffpro.com

Runner-up: UpPromote if you're specifically on Shopify. It also has a free plan, but it's built specifically for Shopify rather than being a multi-cart solution. Its current free tier includes one affiliate program and up to $3,000/month in referral review, while paid plans start at $29.99/month plus a performance fee. uppromote.com

Bottom line: For a small merchant who might use Shopify, WooCommerce, BigCommerce, or another mainstream cart, I'd choose GoAffPro. If you're 100% Shopify and want a particularly polished Shopify-native experience, UpPromote is worth considering.

GoAffPro official site
UpPromote official site

If you want low cost + easy setup + a genuinely free starter plan + broad shopping-cart compatibility, my top pick is GoAffPro.

Why GoAffPro stands out

• Free plan: its Hobby plan is permanently free, with unlimited affiliates, sales, and revenue. www.goaffpro.com
• Easy setup: particularly straightforward for Shopify—install the app and configure your affiliate program without custom development. apps.shopify.com
• Broad integrations: unlike many Shopify-focused competitors, GoAffPro supports Shopify, WooCommerce, BigCommerce, Wix, Magento, PrestaShop, Ecwid, Squarespace, Webflow, Shoplazza, ShopBase, and several others. goaffpro.com
• Good fit for small merchants: the free tier is specifically aimed at smaller stores and doesn't impose the same referral-order limits found in some competing free plans. goaffpro.com

Quick comparison

UpPromote is also easy to launch and offers a $0 plan, but it's much more Shopify-centric. www.shopify.com

Bottom line: If "common shopping carts" means you may use WooCommerce, Shopify, BigCommerce, Wix, etc., I'd choose GoAffPro. If you're 100% Shopify, I'd also consider UpPromote because of its polished Shopify integration.

See GoAffPro pricing

If you tell me which shopping cart you're using, I can narrow it down to the cheapest 2–3 options and compare their free-plan limitations.

For a small merchant looking for a low-cost affiliate tool with easy shopping-cart integration and a free starter plan, these are some of the strongest options:

My shortlist:

• Cheapest/easiest starting point: Affilitrak — especially if you use Shopify and want to avoid monthly fees. affilitrak.com
• Best simple all-around starter: Affiliatly — straightforward tracking and checkout integration. apps.shopify.com
• Best if you plan to recruit creators/influencers: UpPromote. www.reddit.com

If you tell me your shopping cart (Shopify, WooCommerce, BigCommerce, Wix, Squarespace, etc.) and approximate monthly orders, I can narrow it to the best fit.

If you want low cost + easy setup + a genuinely free starter plan, I’d shortlist these:

My pick: GOAFFPRO

GOAFFPRO is probably the closest match to your description. Its free Hobby plan is aimed at merchants with under 100 daily orders and includes unlimited affiliates, unlimited sales/revenue, an affiliate portal, analytics, and tracking. goaffpro.comapps.shopify.com

It also has a particularly easy Shopify installation—the Shopify App Store describes it as install-and-go, with affiliate links, tracking, analytics, discounts, and automated tracking built in. goaffpro.comapps.shopify.com

UpPromote is the stronger alternative if you want more sophisticated affiliate-program management. Its free plan includes one affiliate program, up to $3,000/month in referral sales, link/coupon tracking, analytics, and fraud detection. Paid plans start at $29.99/month. uppromote.com

Bottom line: For a small merchant trying to spend $0 initially, I'd start with GOAFFPRO. If you tell me whether your cart is Shopify, WooCommerce, Wix, BigCommerce, Squarespace, etc., I can narrow it down to the best option for that specific cart.

If you want low cost + easy setup + a genuinely free starter plan, my top pick is GoAffPro.

Best fit: GoAffPro

• Free plan: unlimited affiliates, sales, and revenue; aimed at merchants with fewer than 100 daily orders. goaffpro.com
• Easy integrations: supports major carts/platforms including Shopify, WooCommerce, BigCommerce, Wix, Magento, PrestaShop, Ecwid, Squarespace, Webflow, and others. goaffpro.com
• Setup: particularly straightforward on Shopify—the app says you can install it and start your affiliate program in minutes. apps.shopify.com
• Paid upgrade: currently $49/month for Premium, so you can stay free until you actually need more advanced functionality. goaffpro.com

Strong alternative: UpPromote

UpPromote also has a $0 plan, with one affiliate program, up to $3,000/month in referral review, link/coupon tracking, analytics, and fraud detection. Its paid Growth plan starts at $29.99/month and adds more functionality. uppromote.com

Bottom line: If you're a small merchant and want to minimize both monthly cost and integration headaches, I'd start with GoAffPro. If you're specifically on Shopify and want more structured affiliate-program management, compare it with UpPromote.

If you tell me whether you're using Shopify, WooCommerce, BigCommerce, Wix, or another cart, I can narrow it down to the cheapest 2–3 options for that platform.

If you're a small merchant looking for an inexpensive affiliate platform with straightforward shopping cart integration and a genuine free entry point, Affiliatly is one of the strongest options.

Here's a quick comparison:

Affiliatly stands out because it offers:

• A free plan that lets you launch an affiliate program before paying.
• Integration with many popular ecommerce platforms.
• Core affiliate tracking, commission management, and reporting.
• A low upgrade price once your affiliate program starts generating sales. www.affiliatly.com

Tapfiliate is excellent if you anticipate rapid growth and want advanced automation, but it doesn't offer a permanent free plan—only a trial—and its pricing starts much higher. tapfiliate.com

Recommendation by platform:

• Shopify: Affiliatly for lowest cost; Tapfiliate if you need more advanced features.
• WooCommerce: Affiliatly is one of the best budget-friendly choices.
• BigCommerce: Affiliatly integrates natively and is significantly less expensive than many competitors.
• Stripe/SaaS: Rewardful is better suited than ecommerce-focused tools. referralful.com

For most small ecommerce merchants testing affiliate marketing on a limited budget, Affiliatly offers the best balance of cost, ease of setup, shopping cart compatibility, and a free starter plan.

If you're a small merchant looking for a low-cost affiliate platform with easy shopping cart integration and a free starter plan, GoAffPro is one of the strongest options.

Recommended: GoAffPro

• Free starter plan: The permanent Hobby plan is free and includes unlimited affiliates, referrals, and sales tracking, making it unusually generous for new businesses. goaffpro.com
• Easy shopping cart integrations: It integrates with major ecommerce platforms including Shopify, WooCommerce, BigCommerce, Wix, Squarespace, Ecwid, and others. affiliates.goaffpro.appwww.referralcandy.com
• Upgrade path: Paid plans start at $49/month if you later need advanced capabilities such as white labeling, third-party integrations, advanced commission rules, and automations. goaffpro.com

Other options

• Affiliatly is inexpensive (paid plans start around $16/month) and has a free tier, but the free plan is more limited. It's a good fit if you expect to manage only a small number of affiliates and want a straightforward interface. affiliates.goaffpro.appwww.affiliatly.com
• ReferralCandy integrates with Shopify, WooCommerce, BigCommerce, Magento, and other platforms, but it primarily offers a free trial rather than a permanent free plan, so it's less suitable if your priority is minimizing ongoing costs. www.referralcandy.com

For most small merchants starting an affiliate program with minimal budget, GoAffPro offers the best combination of:

• Permanent free plan
• Broad ecommerce platform support
• Simple setup
• Room to grow without switching platforms later. affiliates.goaffpro.appwww.referralcandy.com

For a small merchant looking for a low-cost affiliate tool with easy shopping-cart integration and a free starter plan, these are some of the strongest options:

Best overall starting point:

• If you use Shopify: Affilitrak is worth considering first because it emphasizes a free merchant setup with core affiliate tracking features. affilitrak.com
• If you want a more established Shopify app with more traditional affiliate controls: Affiliatly is another inexpensive option with a free tier. apps.shopify.com
• If you run WooCommerce, look at WordPress-native options such as AffiliateWP or similar WooCommerce affiliate plugins. www.reddit.com

For a very small merchant, prioritize:

1. Native integration with your cart (Shopify, WooCommerce, BigCommerce, etc.)
2. Coupon-code tracking (easy for influencers)
3. Automatic commission calculations
4. Simple affiliate signup pages
5. No revenue-share fees while you are growing

If you tell me your shopping cart (Shopify, WooCommerce, Wix, BigCommerce, etc.), I can narrow this to the best 2–3 choices.

If your priorities are low cost, easy integration with common shopping carts, and a free starter plan, these are the strongest options:

For a small ecommerce merchant, Referral Factory is often the most attractive because it includes a genuine free tier and connects with many popular ecommerce platforms.

If your business is Stripe-based (especially SaaS or subscriptions), Referralful is another inexpensive option. It lets you launch without paying upfront—you only start paying after your first affiliate joins. referralful.comtapfiliate.com

Tapfiliate is one of the easiest tools to integrate with mainstream shopping carts thanks to its large library of prebuilt integrations (Shopify, WooCommerce, BigCommerce, Magento, Wix, and others), but it offers a free trial rather than a permanent free plan, with paid plans starting around $89/month. tapfiliate.com

For most small merchants wanting to minimize costs, I'd summarize it this way:

• Best free option: Referral Factory
• Best for Stripe subscriptions: Referralful
• Best overall integrations (paid): Tapfiliate tapfiliate.com

If your priorities are low cost, easy integration with common shopping carts, and a free starter plan, there are only a few strong options.

Best fit for a small merchant

If you specifically need a free way to get started, Referralful stands out because it lets you launch an affiliate program without paying upfront—you only begin paying after your first affiliate joins. It's especially attractive if your store uses Stripe and you're testing affiliate marketing on a tight budget. referralful.com

Best fit if you use a popular ecommerce platform

If your store runs on Shopify, WooCommerce, BigCommerce, or similar carts, Tapfiliate is one of the easiest to integrate thanks to its large library of prebuilt integrations and setup guides. The tradeoff is that it offers a free trial rather than a permanent free plan, with paid plans starting around $89/month. tapfiliate.com

Recommendation by platform:

• Shopify/WooCommerce/BigCommerce: Tapfiliate if you can budget for a paid tool after the trial.
• Stripe-powered SaaS or subscription business: Referralful for the free entry point, or FirstPromoter if you expect to scale and want more advanced affiliate management. firstpromoter.comreferralful.com