Backend Architecture with RevenueCat You do not build a receipt verification server with RevenueCat. Your backend still has a role, but that role is consuming RevenueCat state, not validating Google Play purchase tokens. Phase 1: Discovery RevenueCat's backend is the receipt verification server. When the Android SDK posts a purchase token, RevenueCat's backend: 1. Calls or against the Google Play Developer API. 2. Validates the receipt is genuine and matches the expected product. 3. Records the transaction in its database. 4. Returns to the SDK. Your Android app never calls the Google Play De…