Affiliate tracking that drops into your Polar checkout in 2 minutes. Self-host for free, or use our hosted version starting at $12/mo.
See the live demo · No credit card needed
Drop in your Polar webhook secret, paste the referral cookie into your checkout metadata, and conversions just appear. Signature verification built in.
Open source under AGPL-3.0. Spin it up on your own server, or pay us $12/mo and we'll run it for you. Same code either way.
IP addresses hashed. No third-party analytics, no cross-site cookies. Affiliate emails only stored when needed for payouts.
Drop on your marketing site, paste a secret in the dashboard, pass one cookie at checkout. That's it.
<script async src="https://usesled.com/yourslug/t.js"></script>
URL: https://usesled.com/yourslug/api/webhook/polar Events: order.created, order.refunded, subscription.canceled
await polar.checkouts.create({
products: [productId],
metadata: { referral: req.cookies.ta_ref ?? "" },
});Magic-link signup, pick a slug like acme, set your commission %. Takes 60 seconds.
Paste your Polar webhook secret in Settings. Add the webhook URL we give you to your Polar dashboard. Done.
One <script> tag on your marketing site, then share /yourslug/join with your audience.
Indie hackers are already paying for Rewardful. You can spin up the same thing on Sled before lunch — for free, until you have 3 affiliates.
Start free →