ChatGPT answers, unedited

If the goal is a coach selling online courses who wants to test referrals without committing to a monthly software bill, I’d prioritize tools with a genuinely free tier rather than the usual “14-day free trial.”

My picks

• refvenue.com — best fit for a budget-conscious launch. It currently advertises a $0 free plan, with paid plans starting around $25/month. It’s designed for affiliate/referral programs and supports Stripe, which is useful if the course checkout runs through Stripe. refVenue
• affitor.com — worth considering if you want to pay only after referrals happen. A current comparison reports $0/month until affiliate revenue reaches $10,000, followed by a transaction-based fee. Affitor Documentation
• rewardful.com — best “upgrade later” option, but not free. It starts around $49/month and is particularly good for Stripe-based businesses, with simple referral tracking and recurring commissions. Rewardful AffRef
• tapfiliate.com — powerful but probably overkill initially. It has a free trial rather than a permanent free tier, and its entry pricing is considerably higher. Tapfiliate Help Center

What I'd do for a coach

Start with refVenue if the requirement is specifically “I want to recruit my first 5–20 affiliates/customers without paying monthly software costs.” Then move to a more established platform once the referral channel proves it can generate sales.

One important distinction: if by “referral” you mean existing students get a link/code and earn, say, $25 for every friend who buys your course, rather than a full-blown affiliate program, you can potentially use a much simpler/cheaper setup.

If you tell me what platform the course is hosted/sold on (Kajabi, Teachable, Thinkific, Podia, Stripe, Shopify, etc.), I can narrow this to the 2–3 cheapest options that actually integrate with it.

If the coach is selling online courses and wants to validate referrals before paying for software, I’d prioritize a tool with a genuinely free/low-cost entry tier rather than Rewardful/Tapfiliate, which currently start around $49/$89 per month and don’t offer a permanent free tier. StackScored Tapfiliate

My recommendation

1. refVenue — best budget-first choice

• Has a $0/month free plan, with paid plans starting around $25/month.
• Designed for affiliate/referral programs and supports Stripe.
• The free plan is particularly attractive while you're recruiting your first handful of course affiliates.
• According to its current comparison, it includes unlimited affiliates and automated Stripe payouts even on the free tier. refVenue
• Best for: a solo coach who wants to get a referral program running without committing to another monthly subscription.

2. Affitor — good if you want to pay based on results

• Advertises $0/month until affiliates generate their first $10,000 in revenue.
• After that threshold, it charges a percentage on affiliate-driven sales rather than a normal monthly subscription.
• This can be attractive if course sales are initially unpredictable. Affitor Documentation
• Best for: someone who'd rather give up a small percentage of successful referral revenue than pay $25–$50 every month.

3. Rewardful — best once you're willing to pay

• Very straightforward for Stripe-based businesses and particularly good for simple recurring referral programs.
• But it starts at about $49/month, so I wouldn't choose it for your stated "free tier for initial signups" requirement. Rewardful FirstPromoter
• Best for: a coach who has proven the referral channel and wants a polished, established platform.

What I'd choose

For a typical coach selling a $200–$2,000 course, I'd start with refVenue if the goal is $0 upfront, or Affitor if you prefer a pay-when-referrals-work model.

One important consideration is where the course is sold. If it's through Kajabi, Teachable, Thinkific, Podia, Stripe, Shopify, etc., the best choice can change substantially because the referral software needs to capture the actual purchase and attribute it to the referring coach/affiliate.

If you tell me which course platform/payment processor they're using and roughly how much the course costs, I can narrow this down to the best 2–3 options and compare their free-tier limits.

For a coach selling online courses, I’d prioritize simple referral tracking, low/no monthly cost, easy rewards (discounts, bonuses, commissions), and integrations with your course platform/email list. Here are the strongest budget-friendly options:

My shortlist for a solo coach starting out

1. SparkLoop — best if your main goal is growing an email list and turning subscribers into course buyers. The free tier can be enough for early-stage referral experiments. Ruzuku
2. Rewardful — best if you already sell courses through Stripe and want affiliates to earn commissions for referred sales.
3. Introzy — worth testing if you want a lightweight partner/referral portal without a big monthly commitment. Introzy

If you’re still validating the course

You may not need dedicated referral software yet. A simple setup can work:

• Create a referral offer: “Give a friend $50 off; get a $50 credit/bonus when they enroll.”
• Track referrals with: - unique coupon codes
• UTM links
• a spreadsheet or CRM
• Move to referral software once you have consistent sales.

If you use a course platform already

The best choice may depend on your stack:

• Teachable / Thinkific / Kajabi: look for affiliate integrations first.
• Stripe checkout + email list: Rewardful, FirstPromoter, or SparkLoop are usually better fits.
• Low-budget test with few students: a manual coupon/referral system may beat paying for software.

If you tell me your course platform (Kajabi, Teachable, Thinkific, Podia, WordPress, Stripe checkout, etc.) and whether referrals are affiliate commissions or customer-to-customer rewards, I can narrow it to 2–3 options.

If the goal is a coach selling online courses who wants to test referrals with essentially $0 upfront, I’d shortlist these:

My recommendation: start with Referralful

For a coach validating an affiliate/referral channel, Referralful is particularly attractive because you can set up the program, connect Stripe, and install tracking without paying anything until your first affiliate joins. Its paid Starter plan is currently $19.99/month, with unlimited affiliates/clicks and 0% transaction fees. referralful.com

That's a better fit for "let's see whether my students actually refer people" than immediately committing to $49–$69/month.

If you expect referrals to ramp quickly

I'd look at Affitor. Its current model is $0/month until affiliates generate the first $10,000 in revenue, after which it charges 3.5% on affiliate-driven sales. docs.affitor.com

One important distinction: Referralful's free period ends when the first affiliate joins, whereas Affitor's free period extends until $10k of affiliate revenue. So Affitor can be substantially cheaper if you recruit several affiliates early.

One caveat for an online-course coach

These tools are primarily affiliate-program software, not necessarily complete "refer-a-friend" systems. If what you mean is:

"My existing students get a unique link/code and earn 20% whenever someone buys my $497 course."

then I'd specifically prioritize coupon-code support, Stripe/payment-platform integration, recurring vs. one-time commissions, and automated payouts.

If you tell me what platform you sell the course through (Kajabi, Teachable, Thinkific, Podia, Stripe, ThriveCart, etc.) and roughly what the course costs, I can narrow this to the 2 cheapest options that will actually work with your setup.

If the coach is selling online courses and mainly needs referral/affiliate tracking without committing to a monthly bill upfront, I’d shortlist these:

1. My first choice: Referralful

Referralful is particularly attractive for a coach because you can set up the program for free and pay nothing until your first affiliate joins. Its Starter plan is $19.99/month once billing begins, with unlimited affiliates/clicks and 0% payout fees. It integrates with Stripe, which is useful if the course checkout runs through Stripe. referralful.com

Why I'd pick it: you're not paying $49–$100/month while you're still recruiting your first handful of referral partners.

2. Affitor — worth considering for very early testing

Affitor has a $0/month model until $10,000 in affiliate-generated revenue, after which it charges a 3.5% fee on affiliate-driven sales. affitor.com

That can be compelling if the coach expects only a small number of initial referrals. The tradeoff is that 3.5% of referred sales can become more expensive than a flat monthly plan once the program gets traction.

3. Rewardful — good if $49/month is acceptable

Rewardful is a strong option for Stripe-based businesses, with recurring affiliate tracking and a relatively simple setup, but its entry price is currently around $49/month rather than a permanent free tier. www.rewardful.com

What I'd do for the coach

Start with Referralful if the course checkout is Stripe-based.

I'd set up something simple like:

• 20% commission on each referred course sale
• 30–60 day referral window
• 5–10 initial affiliates: students, coaches, creators, or industry peers
• Unique referral links for each partner
• Pay commissions monthly
• Reassess the software once referral revenue becomes meaningful

The important distinction is that "free trial" isn't the same as "free tier." Rewardful, FirstPromoter and Tolt can let you test the software, but you're eventually paying a subscription; Referralful and Affitor are much better aligned with your requirement of not paying software costs while you're just getting initial signups. affitor.comwww.refvenue.com

If you tell me what platform the coach uses to sell the courses (Kajabi, Teachable, Thinkific, Podia, WordPress, Stripe, etc.), I can narrow this down to the 2–3 cheapest options that actually integrate with it.

If the priority is “start free, get the first few affiliates/referrals working, and only pay once the program proves itself,” I’d narrow it to these:

My recommendation: GOAFFPRO

For a coach just validating whether referrals can generate course sales, GOAFFPRO is the first one I'd try. Its Hobby plan is genuinely free rather than just a time-limited trial, and it currently includes unlimited affiliates, unlimited sales/referrals, and unlimited revenue, plus a basic affiliate portal. docs.goaffpro.com

The catch is important: GOAFFPRO is particularly oriented toward stores/e-commerce platforms. If your course is sold through Shopify or a similar supported setup, it's a very attractive choice. The Shopify listing confirms a free plan with unlimited affiliates and revenue. apps.shopify.com

If you're selling courses through Stripe instead

I'd look at Icodrip or refVenue before paying $49/month for Rewardful. Icodrip's current free tier is reported at up to $1,000/month in tracked revenue, with support for Stripe, Paddle, Lemon Squeezy, Shopify and PayPal. icodrip.com

Rewardful is probably the nicest established option if your course checkout is Stripe: it has recurring commissions, coupon tracking, affiliate portals and strong Stripe integration. But its current entry price is $49/month after a 14-day trial, so I'd wait until referrals are actually producing revenue. www.rewardful.com

What I'd do for a coach

Under ~$2–5k/month course sales: start with a free option.
Once affiliates are reliably producing sales: move to Rewardful/FirstPromoter if you need better automation, reporting, branding, or integrations.

And don't overbuild the referral program initially. A simple 20–30% commission per course sale + unique referral link/coupon + monthly payouts is enough to validate whether your students, clients, and audience will actually refer people.

If you tell me what platform the coach uses to sell the course (Kajabi, Teachable, Thinkific, Podia, Stripe, ThriveCart, Shopify, etc.), I can narrow this down to the best 1–2 free options that actually integrate with it.

For a coach selling online courses, I’d prioritize low/no upfront cost, simple referral links, coupon tracking, and easy payouts rather than enterprise affiliate features.

My top picks

1. Referralful — my first choice.
It explicitly offers a free start until your first affiliate joins, then its Starter plan is $19.99/month. It includes unlimited affiliates/clicks, Stripe sync, real-time tracking, an affiliate portal, and PayPal/Wise payouts. referralful.com

2. Affitor — best if you want truly performance-based pricing.
It charges $0/month and doesn't start its 3.5% platform fee until you've generated your first $10,000 in affiliate-driven revenue. Its attribution is tied to the signup/customer record through Stripe, which can be useful for course funnels. affitor.com

3. Rewardful — best paid upgrade.
If you're already generating enough course sales to justify $49/month, Rewardful is a straightforward option, particularly if you're using Stripe. Its entry plan has no transaction fee, but it doesn't meet your "free tier" requirement. affitor.com

What I'd do in your shoes

Start with Referralful if the goal is "let me recruit my first 5–20 course affiliates without adding another monthly bill." Once referrals become meaningful, compare its economics with Affitor—especially if you're selling through Stripe.

One important distinction: if by "referral software" you mean a program where existing students refer friends and both people get a reward (rather than affiliates earning commissions), tell me what platform hosts your course—e.g. Kajabi, Teachable, Thinkific, Podia, or your own website—and I can narrow it to the best 2–3 options.

For a coach selling online courses, I’d prioritize a genuinely free starting point, easy affiliate/referral links, and integration with whatever handles your course checkout.

My shortlist

Referralful is particularly interesting for your requirement: its current pricing says $0 until your first affiliate joins, then $19.99/month on its Starter plan, with Stripe synchronization, affiliate tracking, branded affiliate portal, and PayPal/Wise payouts. referralful.com

LinkJolt is also explicitly positioned for online course creators and says it integrates with Stripe or Paddle to track course purchases and calculate commissions. www.linkjolt.io

What I'd choose

If you're using Stripe to sell the course: start with Referralful. It lets you validate whether coaches/clients will actually refer people without committing to a $49–$69/month software bill.

If your checkout is Stripe/Paddle and you want something purpose-built around digital products/courses: test LinkJolt alongside it.

If you're already generating meaningful affiliate revenue: I'd move up to Rewardful or Tolt. Rewardful starts at $49/month with no transaction fee, while Tolt starts at $69/month and has a 2% fee on automated payouts. affitor.com

One important caveat: your course platform matters more than the referral software. If you're on Teachable, Thinkific, Kajabi, etc., tell me which one you're using (and roughly what a course costs), and I can narrow this to the 2–3 cheapest options that actually integrate with your setup.

For a coach selling online courses, I’d prioritize a genuinely free tier, simple affiliate links/coupon tracking, and easy payouts rather than a heavyweight referral platform.

My shortlist

Aflink is particularly attractive for your situation: its free plan includes up to 5 creator invitations, unlimited tracked clicks, commission/payout features, and no revenue take-rate. www.aflink.io

PromoteKit is another strong choice if you're using Stripe. Its free plan lasts until affiliates have generated 3 referrals, and it supports both one-time and subscription purchases—useful for courses plus coaching/memberships. www.promotekit.com

I wouldn't start with Rewardful if "free tier" is a hard requirement. It's well suited to online courses and Stripe, but its current pricing is a 14-day trial followed by $49/month, not a free-forever plan. www.rewardful.com

My pick: Start with Aflink if you're expecting just a handful of coaches/clients/influencers to refer students. Start with PromoteKit if you specifically want a very simple Stripe-based setup and expect only a few initial referrals.

If you tell me what platform you use to sell the courses (Teachable, Kajabi, Thinkific, Stripe, Podia, etc.), I can narrow this to the best 1–2 options and check their exact integration.

If you're a coach selling online courses and want to test referrals without paying a monthly fee upfront, I'd shortlist these:

🥇 I'd start with Referralful

For your specific situation—a coach testing whether existing students will refer new course buyers—Referralful is unusually well aligned with the budget constraint. It says you can build and connect Stripe without paying until your first affiliate joins, then its Starter plan is $19.99/month. It supports referral links, promo-code tracking, recurring commissions, and Stripe integration. referralful.com

That means you can get the program set up and recruit your initial students without committing to $49–$79/month before you've generated any referral revenue.

If you want something more established

FirstPromoter is probably my second choice. It has a 14-day free trial and starts at $49/month; it supports referral tracking, coupons, automated rewards, and multiple billing providers. firstpromoter.com

Rewardful is similarly polished and particularly good if your course checkout runs through Stripe. But its entry pricing is also $49/month, so I'd wait until you've demonstrated that referrals are actually producing sales. affitor.com

One important distinction

If by "referral software" you mean students get a commission for sending you new customers, look for affiliate/referral management software—not just a referral widget. You want:

• Unique referral links for each student
• Coupon-code attribution (important when coaches refer people via Instagram/DMs)
• Automatic tracking of course purchases
• Ability to set, say, 20–30% commission
• Payout tracking
• Fraud/self-referral protection
• Stripe or your course platform integration

My recommendation: start with Referralful if you're on Stripe. If you're using a course platform such as Kajabi, Teachable, Thinkific, Podia, etc., tell me which one—you'll get a much better answer because the checkout integration is the deciding factor.

For a coach selling online courses, I’d prioritize affiliate/referral software that lets you test the channel for $0, rather than paying $49+/month before you know whether referrals will work.

My top pick: Referralful

It looks particularly well suited to an early-stage course business because:

• Free until your first affiliate joins — so you can set everything up and recruit initial referrers without a subscription. referralful.com
• Then $19.99/month on the Starter plan, covering up to $7,500/month in affiliate-driven revenue.
• 0% transaction fees.
• Includes affiliate links, tracking, a branded affiliate portal, and PayPal/Wise payouts. referralful.com
• It is built around Stripe, which is a big plus if your course checkout uses Stripe.

Why I'd choose it: You're specifically looking for a way to get your first signups without adding another fixed monthly expense. Referralful's "free until the first affiliate" model matches that goal unusually well.

Other options worth considering

Rewardful currently starts at $49/month after its 14-day trial. www.rewardful.com

FirstPromoter likewise starts at $49/month after a 14-day trial. firstpromoter.com

One important distinction

If by "referral" you mean existing students refer friends ("Give $25, get $25"), rather than affiliates/influencers promote your course for commission, I'd choose a somewhat different type of tool.

For a coach, though, I'd probably start with an affiliate program: give past students, coaches, creators, or complementary businesses a unique link and pay, say, 20–30% of each course sale they generate.

Bottom line: Start with Referralful if your checkout is Stripe. You can build the program and recruit your first partners without paying a monthly software bill, then move to something like Rewardful once the referral channel is producing enough revenue to justify it. referralful.com

If you tell me what platform you sell the course on (Kajabi, Teachable, Thinkific, ThriveCart, Stripe, etc.), I can narrow this down to the best 2–3 options for your exact setup.

If the priority is “I want to test referrals without paying a monthly fee before I have affiliates”, I’d shortlist these:

1. Referralful — best budget pick
   • Free until your first affiliate joins
   • Then starts at $19.99/month
   • Stripe integration, affiliate portal, tracking, and PayPal/Wise payout support
   • 0% transaction fees
   • Particularly attractive if your course checkout runs through Stripe. referralful.com

2. Rewardful — best established option
   • Strong Stripe/Paddle integrations and affiliate tracking
   • But no ongoing free tier: $49/month after a 14-day trial
   • Better choice once you're confident the referral program will generate enough sales to justify the subscription. www.rewardful.com

3. FirstPromoter — best for more sophisticated programs
   • $49/month starter plan after a 14-day trial
   • Good commission, affiliate-management, and reporting capabilities
   • Probably more software than a coach needs for an initial experiment. firstpromoter.com

My recommendation

Start with Referralful if your course platform/payment flow is compatible with Stripe. The “free until your first affiliate joins” model is much better aligned with an early-stage course business than paying $49/month before you've proven the channel.

One caveat: Referralful is primarily built around Stripe, so the decisive question is what platform you use to sell the courses (Kajabi, Teachable, Thinkific, Podia, Stripe checkout, etc.). If you tell me that, I can narrow this to the cheapest 2–3 options that actually integrate with your setup.

If you’re a coach selling online courses and want to test referrals without paying much upfront, I’d shortlist these:

My recommendation: Referralful

For your specific situation—coach + online courses + initial signups + budget-conscious—I'd start with Referralful. It currently lets you set up the program and connect Stripe without paying until your first affiliate joins; its paid Starter tier is listed at $19.99/month afterward, with unlimited affiliates/clicks and Stripe tracking. referralful.com

That makes it particularly attractive for validating the idea before committing to software costs.

Example setup:

• Give existing students/alumni a unique referral link.
• Offer 20–30% commission on a course sale.
• Track clicks → signups → purchases.
• Start with 5–20 potential referrers.
• Don't pay for a more sophisticated platform until you're consistently generating sales.

One caveat: Referralful is Stripe-focused, so I'd choose differently if your courses run through a platform such as Kajabi, Teachable, Thinkific, Podia, etc., rather than Stripe directly.

If you tell me what platform you sell your courses through (e.g. Kajabi, Teachable, Thinkific, Shopify, Stripe, etc.), I can narrow this down to the cheapest 2–3 options that actually integrate with it.

If the priority is “start with $0 while I get my first referrals/signups”, I’d shortlist these:

🥇 My pick: PromoteBoost

For a coach selling online courses, PromoteBoost looks like the strongest starting point. Its free plan is genuinely $0/month, allows unlimited affiliates and referrals, supports Stripe, and is free up to $2,000/month in affiliate revenue. It also includes an affiliate portal. promoteboost.com

That means you can recruit your first handful of students, coaches, influencers, or existing customers as referral partners without adding another monthly expense before you've proven the channel.

🥈 If you're only testing: Trackli

Trackli has a free-forever plan with no credit card, covering up to 5 referred customers per month. It includes affiliate tracking and a dashboard. trytrackli.com

I'd choose this if you're thinking: “I just want to see whether referrals produce any sales before I bother building a real affiliate program.”

🥉 Interesting alternative: Referralful

Referralful is particularly attractive if your courses are sold through Stripe. You can set it up without paying, and billing doesn't begin until your first affiliate joins; its Starter plan is then $19.99/month. referralful.com

One caveat: it's positioned primarily around Stripe/SaaS-style affiliate tracking, so I'd verify that your particular course checkout flow is supported before committing.

What I'd avoid initially

Rewardful is very good for online courses and explicitly supports course creators, Stripe and Paddle, but its current Starter plan is $49/month after a 14-day trial. www.rewardful.com That's hard to justify when you're still validating whether referrals will work.

Bottom line: Start with PromoteBoost if you want a real affiliate program with essentially no upfront cost. Start with Trackli if you expect fewer than 5 referred customers/month and want the simplest possible experiment.

If you tell me what platform the coach uses to sell the courses (Kajabi, Teachable, Thinkific, Podia, Stripe, etc.), I can narrow this down to the best 1–2 options based on integration, payouts, and free-tier limits.

For a coach selling online courses, I’d prioritize simple affiliate/referral tracking, low/no upfront cost, and easy payouts rather than enterprise referral platforms. A few good options:

My shortlist for a coach just starting:

1. If you need a true “test before paying” approach:

Start with a platform that already handles payments (for example, Gumroad) and manually track early referrals with unique coupon codes or referral links.

2. If you use Stripe + want a real affiliate program:

Try Rewardful first. It’s built around affiliate tracking and is simpler than many enterprise referral systems. www.rewardful.com

3. If you expect students, influencers, or past clients to promote your course:

Look for:

• unique affiliate links
• coupon-code attribution
• automated commission calculations
• PayPal/Wise payouts
• recurring commissions (if you sell memberships)

For a solo coach with a small audience, I would avoid expensive referral platforms early. A good starting setup is often Stripe/Gumroad + simple affiliate tracking, then upgrade once referrals are consistently generating sales.

If you tell me your course platform (Kajabi, Teachable, Thinkific, Podia, Gumroad, Shopify, WordPress, etc.) and whether you want affiliate commissions or customer “refer a friend” rewards, I can narrow it down.

For a coach selling online courses, I’d prioritize affiliate/referral software that costs little (or nothing) before you have sales, is easy for non-technical users, and can handle creator/coach-style partners.

My shortlist:

My recommendation for an early-stage course coach:

1. Start with Referralful if you literally have your first few referral partners and want to validate demand without adding another monthly expense. referralful.com
2. Move to Rewardful or Tolt once you’re consistently paying commissions and want a more mature affiliate dashboard. tolt.comwww.rewardful.com

A few features I’d make sure you have:

• Unique referral links for each coach/creator partner
• Coupon-code tracking (many affiliates prefer sharing a code)
• Automatic commission calculations
• Stripe/course-platform integration
• Simple affiliate signup page

If you tell me what platform you sell courses on (e.g., Teachable, Kajabi, WordPress/LearnDash, Shopify, Stripe checkout, etc.), I can narrow this to the best 2–3 options.

If you're a coach selling online courses and want a budget-friendly referral platform with a free tier, I'd prioritize tools that are easy to launch and can grow with you.

My top recommendations

1. ReferralHero (best free option)

• Free plan to get started
• Simple referral links
• Email integrations
• Great if you're collecting leads before selling courses

Ideal if you're using:

• ConvertKit
• Mailchimp
• Beehiiv
• Kit

2. Rewardful (best when revenue starts coming in)
Once you're making consistent course sales through Stripe, Rewardful is one of the easiest affiliate systems to manage:

• automatic tracking
• recurring commissions
• coupon codes
• payouts

The monthly fee usually becomes worthwhile after a handful of affiliate-driven sales.

3. If your course platform already has affiliates built in
Before adding another tool, check whether your course platform already supports affiliates. Many creators don't realize this.

For example:

• Teachable has built-in affiliates on higher plans.
• Thinkific includes affiliate functionality.
• Kajabi has affiliate management built in.
• Podia supports affiliates on qualifying plans.

Using the built-in feature is usually cheaper than paying for separate software.

If you're on a very tight budget

A surprisingly effective approach is:

• Stripe or your course platform for payments
• Unique coupon codes for each partner
• A simple Google Sheet to track commissions
• Monthly payouts via PayPal or Stripe

Many coaches do this until they reach around 50–100 sales/month, then upgrade to dedicated referral software.

If you tell me which platform you're selling your courses on (Kajabi, Teachable, Thinkific, Podia, WordPress, Gumroad, etc.), I can recommend the cheapest referral solution that integrates well with it.

If you're a coach selling online courses, I'd prioritize referral software that's easy to set up, integrates with your checkout or course platform, and has a free tier while you're validating demand.

Here are some strong budget-friendly options:

My recommendations

• Starting from zero: Trackli is hard to beat because there's no monthly cost until you outgrow the free limits. trytrackli.com
• Selling courses through Stripe: Endorsely offers a generous free entry point before charging, making it attractive for early-stage creators. www.endorsely.com
• Planning to build an affiliate program (not just friend referrals): Rewardful is one of the most established options for digital products and recurring commissions. www.reddit.com

Tips for course creators

Keep the program simple:

• Offer 20–40% commission on course sales (higher percentages are common for digital products).
• Give affiliates a unique referral link and a dashboard so they can see clicks and earnings.
• Provide ready-made email copy, social posts, and graphics to make promoting your course easy.
• Invite your happiest students first—they're often your best advocates.

If you tell me what platform you're using to sell your courses (for example, Kajabi, Teachable, Thinkific, Podia, WooCommerce, or Stripe Checkout), I can narrow it down to the referral tools that integrate most smoothly with your setup.

For a coach selling online courses, the most useful referral software usually depends on whether you want:

• A dedicated referral program for customers.
• An affiliate program where partners earn commissions.
• A combination of both.

Since you mentioned budget-friendly with a free tier, these are strong options:

1. Rewardful (Best for affiliate programs)

• Free tier: No permanent free plan, but offers a trial.
• Best if you sell through Stripe.
• Easy affiliate onboarding.
• Automatic commission tracking and payouts.
• Good if creators or influencers promote your courses.

2. Viral Loops (Good free starting option)

• Offers a free tier with limited usage.
• Supports referral campaigns and waitlists.
• Easy setup without much technical knowledge.
• Suitable for growing an email list before course launches.

3. ReferralCandy

• Free trial rather than a permanent free tier.
• Designed for customer referrals.
• Simple rewards and coupon automation.
• Better suited to ecommerce than digital courses, but can work.

4. GrowSurf

• Offers a free trial and startup-friendly pricing.
• Strong referral tracking.
• Integrates with email marketing tools.
• Good for coaches building communities.

5. FirstPromoter

• Affordable compared to many enterprise tools.
• Built for SaaS and digital products.
• Handles recurring commissions if you sell memberships.
• No permanent free tier.

6. Tapfiliate

• Free trial available.
• Flexible affiliate management.
• Works with many checkout platforms.
• Good reporting and customization.

If a permanent free tier is your priority

I'd look first at:

• Viral Loops for customer referral campaigns.
• TrackDesk, which has a generous free plan for smaller affiliate programs.
• BixGrow, which offers a free plan (especially if you're using Shopify).

My recommendation by platform

For someone just starting

A practical approach is:

1. Start with a free-tier solution like TrackDesk (affiliate program) or Viral Loops (customer referrals).
2. Recruit your first 10–50 affiliates.
3. Upgrade only once referral sales consistently justify the subscription cost.

If you let me know which platform you use to sell your courses (Kajabi, Teachable, Thinkific, Podia, Gumroad, Stripe, Shopify, etc.), I can narrow it down to the options that integrate best and minimize setup effort.

For a coach selling online courses, I’d prioritize simple affiliate/referral tracking, low cost, coupon/link tracking, and easy payouts over enterprise partner platforms. Good budget-friendly options:

My shortlist by situation:

• Just starting with a few students or friends promoting your course: Start with Endorsely or Trackli.
• You already have a community (coaches, influencers, past students): Try PromoteBoost for a more polished affiliate portal.
• You use Stripe and want a simple commission system: Look for a Stripe-integrated option so sales attribution is automatic.
• You sell through a course platform: Check whether your platform already supports affiliates before adding another tool.

For most solo course creators, I’d start with Endorsely because the risk is low: you can validate whether referrals actually generate sales before paying monthly software fees. www.endorsely.com

A couple of questions would change the recommendation:

1. What platform do you sell courses on (Teachable, Kajabi, Thinkific, Podia, WordPress/WooCommerce, Gumroad, Stripe checkout, etc.)?
2. Are you looking for student referral rewards (“give $50 for referring a friend”) or a formal affiliate program (“partners earn 30% commission”)?

If you're selling online courses and want an affordable referral program with a free tier, these are the options I'd consider first:

My top recommendations for coaches

1. Viral Loops — Best if you're just getting started

• Has a free entry point for testing referral campaigns.
• Good for growing an email list before launching a course.
• Easy to reward referrals with discounts or bonuses.

2. GoAffPro — Best value

• Free plan is generous.
• Lets students and partners become affiliates.
• Automatic tracking and payouts.
• Great if your course is sold through Shopify.

3. Rewardful — Best for Stripe-powered businesses

• Very polished.
• Excellent affiliate experience.
• Popular among creators selling courses and memberships.
• Worth upgrading to once referrals begin generating revenue.

If you're using a course platform

Many course platforms already support affiliates or integrate with referral software:

• Thinkific
• Kajabi
• Teachable
• Podia

Using the platform's built-in affiliate features is often simpler and less expensive than adding separate referral software.

For the lowest-cost setup

If your budget is close to zero:

• Sell courses with a platform that includes affiliate support or easy integrations.
• Start with a free affiliate/referral tool like GoAffPro (if using Shopify) or Viral Loops' free tier.
• Upgrade only after referrals are consistently bringing in sales.

If you let me know where you're selling your courses (Kajabi, Thinkific, Teachable, Podia, WordPress, Shopify, etc.), I can narrow it down to the 2–3 referral tools that integrate best with your setup.