Affiliate program software for SaaS

Turn your customers into a reliable acquisition channel

Sentalong runs your affiliate program end to end — referral tracking, commission management, fraud review, and automated payouts — so your team can launch in a day and manage it in minutes a week.

Free plan available. No credit card required. Connects to Stripe in minutes.

Works with your billing platform
StripePaddleLemon SqueezyChargebee

How it works

Launch in a day, then let it run

Sentalong replaces the spreadsheet, the manual payout run, and the guesswork about which signup came from where with one system.

1

Connect billing and add one script

Link your Stripe, Paddle, Lemon Squeezy, or Chargebee account and add a single script tag to your site. Sentalong matches referral visits to paying subscriptions automatically, with a 60-day attribution window.

2

Invite affiliates to their portal

Approved affiliates receive a unique referral link and a portal on your domain, with your branding. They can see their clicks, conversions, and upcoming payout without contacting you.

3

Payouts run on schedule

Commissions accrue as invoices are paid. Refunds reverse automatically. On the first of each month you approve one statement, and every affiliate is paid through Stripe.

“We moved our affiliate program from spreadsheets to Sentalong in one afternoon. It now brings in about a quarter of our new revenue, and payout day went from a full day of work to fifteen minutes.”
Sarah KimCo-founder, Fieldnote (B2B SaaS)

Platform

Everything an affiliate program needs to run properly

Affiliate programs usually fail on operations, not interest. Sentalong handles the operational load so the program keeps running as it grows.

Reliable attribution

First-party cookies combined with server-side matching, so referrals are still credited across devices, ad blockers, and long buying cycles.

Flexible commission rules

Flat fee or percentage, one-time or recurring, tiered by volume, or custom rates for individual partners. Configure it once and Sentalong applies it to every invoice.

Fraud review queue

Self-referrals, duplicate cards, shared IP addresses, and disposable email domains are flagged before commissions accrue. You review a short queue, not a mystery.

Automatic clawbacks

Refunded and charged-back invoices reverse their commissions on the next statement, or deduct from future earnings if already paid. No manual reconciliation.

Branded affiliate portal

A portal on your domain with your logo, where affiliates track performance, download approved marketing assets, and see exactly when they get paid.

Tax documentation

W-9 and W-8BEN forms are collected before the first payout, and 1099 summaries are generated at year end. Your books stay clean without extra work.

Pricing

Flat monthly pricing, no percentage of commissions

Platforms that take a cut of every commission tax your growth. Sentalong charges a flat rate regardless of how much revenue your affiliates drive.

Starter

For validating the channel

$0 / month

  • Up to 10 active affiliates
  • $2,000/month tracked revenue
  • Stripe integration
  • Hosted affiliate portal
Create free account
Most popular

Growth

For programs that are working

$49 / month

  • Unlimited affiliates
  • $25,000/month tracked revenue
  • All billing integrations
  • Portal on your custom domain
  • Fraud review and clawbacks
  • Tax form collection
Start 14-day trial

Scale

For an established partner motion

$149 / month

  • Everything in Growth
  • Unlimited tracked revenue
  • Tiered and per-affiliate rates
  • API and webhooks
  • Priority support
Start 14-day trial

Tracked revenue is subscription revenue attributed to affiliates, not your total MRR. Annual billing saves two months.

FAQ

Common questions

How long does setup take?

Connecting Stripe takes a few minutes through OAuth. After that, you add one script tag to your site and set your commission terms. Most customers record their first referral click the same day.

Do affiliates need their own Sentalong account?

No. You send an invite link, they choose a handle for their referral link, and they get access to your branded portal. To your affiliates, the program looks and feels like yours — Sentalong stays in the background.

What happens when a referred customer refunds?

The associated commission reverses automatically on the next statement. If it was already paid, the amount is deducted from the affiliate's future earnings. There is nothing to reconcile manually.

Can I migrate from Rewardful or FirstPromoter?

Yes. We import your affiliates, historical referrals, and unpaid balances by CSV or API. Existing referral links can be redirected so no affiliate's link breaks during the migration.

Why is pricing flat instead of a percentage of commissions?

A percentage model means the platform earns more as your costs rise. Flat pricing keeps the incentive simple: the product has to stay good enough that you keep using it.

Launch your affiliate program this week

Start on the free plan, connect billing, and invite your first affiliates today. Upgrade only when the channel proves itself.