Polar vs RevenueCat
Polar and RevenueCat both answer the same question: how do you take money? Merchant of record built for developers selling software, with a modern API and open source codebase. A wrapper over App Store and Play Store in-app purchases that normalizes receipts, entitlements and subscription state. The real split is ownership: Polar runs inside your project and leaves the operational work with you, while RevenueCat runs the hard parts as a service and takes a dependency in exchange.
Verdict
The real split is ownership: Polar runs inside your project and leaves the operational work with you, while RevenueCat runs the hard parts as a service and takes a dependency in exchange.
Pick Polar if
- ✓Acts as merchant of record, so global sales tax stops being your job.
- ✓Open source platform, so you can read exactly how billing behaves.
- ✓Digital product, licence key and usage billing primitives suit software sellers directly.
Pick RevenueCat if
- ✓Receipt validation and renewal edge cases across both app stores are handled for you.
- ✓Entitlements give one server-side answer to whether a user has access.
- ✓Cross-platform subscription state stays consistent between iOS, Android and web.
| Comparison | Polar | RevenueCat |
|---|---|---|
| Pricing shape | Percentage of each sale on top of the underlying processing fee, with no monthly platform charge. | Free below a monthly tracked revenue threshold, then a percentage of the revenue it manages. |
| Frameworks | Next.js, SvelteKit, Nuxt | React Native, Expo, Flutter |
| In one line | Merchant of record built for developers selling software, with a modern API and open source codebase. | A wrapper over App Store and Play Store in-app purchases that normalizes receipts, entitlements and subscription state. |
Pricing described qualitatively because published plans change often. Checked 2026-08-23. Confirm current terms on Polar and RevenueCat.
Polar
Strengths
- ✓Acts as merchant of record, so global sales tax stops being your job.
- ✓Open source platform, so you can read exactly how billing behaves.
- ✓Digital product, licence key and usage billing primitives suit software sellers directly.
- ✓Developer experience is closer to a modern API than a legacy payments portal.
Tradeoffs
- ✗Younger platform, so it carries less proven history than incumbent processors.
- ✗Merchant of record model means the customer relationship is partly intermediated.
- ✗Payout timing follows the reseller model rather than landing immediately.
- ✗Narrower feature set for physical goods or complex enterprise invoicing.
RevenueCat
Strengths
- ✓Receipt validation and renewal edge cases across both app stores are handled for you.
- ✓Entitlements give one server-side answer to whether a user has access.
- ✓Cross-platform subscription state stays consistent between iOS, Android and web.
- ✓Built-in subscription analytics and experiments cover a gap the stores leave open.
Tradeoffs
- ✗Only relevant if you sell through mobile app stores in the first place.
- ✗Adds a third party in the path between the store and your entitlement checks.
- ✗Store commission still applies underneath, so this is an added cost layer.
- ✗Deeply tied to store subscription concepts that do not map to web billing.
Frequently asked questions
Is Polar or RevenueCat better?
Neither is better in the abstract. The real split is ownership: Polar runs inside your project and leaves the operational work with you, while RevenueCat runs the hard parts as a service and takes a dependency in exchange. Decide on the tradeoff you can live with, then stop reading comparisons and ship.
What is the main drawback of Polar?
Younger platform, so it carries less proven history than incumbent processors. Merchant of record model means the customer relationship is partly intermediated.
What is the main drawback of RevenueCat?
Only relevant if you sell through mobile app stores in the first place. Adds a third party in the path between the store and your entitlement checks.
Can you switch from one to the other later?
Usually, at a cost that grows with how much of your product leans on the payments layer. Keep the integration behind a thin module of your own and the migration stays a weekend rather than a quarter.