Polar vs Stripe Billing
Polar and Stripe Billing are both billing and subscriptions software. Polar is open source under Apache-2.0, with 10k GitHub stars. Stripe Billing is a commercial product from Stripe, Inc.
Which to pick
- Pick Polar when
- You sell software or digital products internationally and want tax handling and billing done for you.
- Pick Stripe Billing when
- You already use Stripe Payments and want recurring billing set up through its API or dashboard with little extra work.
Side by side
A merchant-of-record billing platform for selling subscriptions, digital products and usage-based plans, handling payments and sales tax.
Stripe's subscription and usage billing: products, prices, subscriptions, invoices, proration, customer portal and smart retries.
Merchant-of-record means a percentage fee on each sale, and the hosted service is the real product even though the code is open.
A percentage-of-billing fee applies, and you are tied to Stripe as your payment processor.
Production-ready (both)
Cloud service (both)
Python, FastAPI, TypeScript and Next.js
Not published
Open source, Apache-2.0 (permissive)
Closed source, sold by Stripe, Inc.
You can build it into a product you sell, as long as you keep its copyright notice.
Closed source: you use it under the maker's terms and cannot change or resell the code.
10k GitHub stars
No Wikipedia article of its own
Established: started 3 years ago, latest release @polar-sh/better-auth@2.1.3.
Not known
Other comparisons
More billing and subscription management systems
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.