Best Affiliate Software for Polar
Add affiliate tracking to your Polar-powered open-source or SaaS product. Seamless webhook integration and embedded dashboard.
Works withPolar
What you get with Refgrow + Polar
Everything you need to run a professional affiliate program on top of Polar.
Polar Webhook Integration
Automatic tracking of Polar checkout and subscription events via webhooks.
Built for Developers
Polar is for developer tools and open-source. Refgrow matches that developer-friendly approach with a simple script tag and REST API.
Recurring Commission Tracking
Track subscription renewals and calculate recurring commissions automatically.
Flexible Commission Structures
Percentage or flat rate, per-product overrides, first-month or lifetime commissions.
Automated Payouts
PayPal and Wise integration for hassle-free affiliate payments.
Embedded Experience
Your affiliate dashboard lives inside your app, not on a separate domain.
Set up in 3 simple steps
Follow the provider connection, widget, and tracking steps for your program.
Connect Polar to Refgrow
Create a project in Refgrow, add your Polar credentials, and configure the webhook endpoint in Polar settings.
Add the widget
Add the public widget container and load page.js to render the affiliate dashboard. Use latest.js separately for referral attribution.
<div id="refgrow" data-project-id="YOUR_PROJECT_ID"></div>
<script src="https://scripts.refgrowcdn.com/page.js" async defer></script>The widget uses the refgrow container and page.js. The separate latest.js script records referral attribution; it does not render the dashboard. Provider webhooks or API events are still required to confirm paid conversions.
Grow your community
Invite your community members to become affiliates. Open-source contributors are often the best promoters.
Verify before you invite partners
After connecting Polar, open a referral link in a fresh browser session and complete your test checkout. Check that the customer, sale, and commission appear in your workspace.
Attribution must reach checkout through the supported referral parameter, metadata, coupon, or email flow for your integration. Adding a tracking script alone does not connect every custom checkout.
Read the tracking guideProgram overview
How tracking works
Refgrow tracks Polar conversions through real-time webhooks:
Affiliate shares link
Referral cookie set on the visitor's browser.
Purchase via Polar checkout
Referral metadata attached to the Polar transaction.
Webhook sent to Refgrow
Polar notifies Refgrow of the completed transaction.
Attribution resolved
Affiliate credited with the commission.
Payout processed
Automatic or manual payouts to the affiliate.
Why SaaS founders choose Refgrow
Zero transaction fees
Flat pricing from $29/mo. No percentage of your revenue, ever.
Embedded in your product
Your affiliate dashboard can live inside your app, with a hosted portal available when partners need a standalone page.
Guided setup
Connect your payment provider, add the widget, and verify tracking before launch.
Multi-provider support
Works with Stripe, Paddle, Lemon Squeezy, Polar, and Dodo Payments.
Automated payouts
Pay affiliates automatically via PayPal or Wise when thresholds are met.
Fraud protection
Built-in detection for self-referrals, duplicate conversions, and suspicious patterns.
Partner Network
Opt your program into the Partner Network so relevant affiliates can discover it and choose whether to accept an invitation.
9 languages
Widget supports English, German, Spanish, French, Italian, Portuguese, Romanian, Russian, and Ukrainian.
Ready to grow with affiliates?
Start your 7-day free trial. Cancel anytime. Connect Polar and verify your affiliate tracking before launch.