RevenueCat

RevenueCat is infrastructure for managing in-app purchases and subscriptions across iOS and Android, letting mobile app developers implement subscription billing once through a single SDK rather than building and separately maintaining the notoriously fiddly integrations with Apple's App Store and Google Play billing systems on their own. Once integrated, RevenueCat handles receipt validation, subscription status tracking, and cross-platform entitlement management, meaning a developer can check a simple "does this user have access to this feature" flag rather than writing custom logic to interpret raw purchase receipts from each platform, which has historically been a common source of subscription billing bugs in mobile apps. Its dashboard gives founders and product teams subscription analytics like trial conversion rates, churn, and revenue trends without needing to build custom reporting on top of raw App Store and Play Store data exports, which are notoriously difficult to analyze directly. RevenueCat also supports experimentation tools for testing different paywall designs and pricing structures, letting teams optimize monetization without shipping a new app version for every pricing experiment. Because subscription billing edge cases, like handling refunds, upgrades, downgrades, and family sharing, are genuinely complex to implement correctly across two different platform ecosystems, RevenueCat has become a near-default choice for mobile app developers building any kind of subscription business, letting a small team avoid reinventing subscription billing infrastructure that has already been solved.