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Polar Open-source monetization for developers

Lowest MoR fees on the market (4% + $0.40). Open source, built for developers and OSS projects.

Visit Polar

Pricing

4% + $0.40 per transaction (lowest MoR fees on the market)

Best for

  • indie dev
  • open source
  • developers
  • Digital products
  • SaaS
  • web
  • Creators
  • Global tax & VAT compliance
  • Fast setup
  • Low fees
  • B2B

Pros

  • Easy to set up and ship
  • Competitive fees as you scale
  • Handles global sales tax and VAT

Cons

  • Limited conversion / paywall optimization
  • Basic billing only

Alternatives

Lemon Squeezy5% + $0.50 per transaction. Acquired by Stripe 2024.

Payments, subscriptions and MoR for indie SaaS

Compare Polar vs Lemon Squeezy
Gumroad10% + $0.50 per transaction (direct). 30% via Gumroad marketplace. MoR since January 2025 — handles all global tax.

Sell anything digital, instantly

Compare Polar vs Gumroad
Stripe BillingPay-as-you-go: 0.7% of billing volume. Or from €500/month (pay monthly, up to €80k volume/mo, 1-year contract, 0.67% beyond). Plus standard Stripe payment processing (1.5%+€0.25 EU cards).

Subscription billing with full developer control

Compare Polar vs Stripe Billing

Stacks that include Polar

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