Flutter应用内购方案选型：RevenueCat与in_app_purchase库哪个更适合已上架App Store和Google Play的应用？

Hey there! Since your Flutter app is already live on both App Store and Google Play, let’s dive into which in-app purchase solution makes the most sense for you. I’ve built and maintained cross-platform IAP flows with both tools, so here’s a practical breakdown:

Pros & Cons of in_app_purchase (Flutter's Official Library) #

• No third-party lock-in & completely free: You’re relying on Flutter’s official package, maintained by the core team, so there’s no extra cost or dependency on external services.
• Full control, but more work: You’ll have to handle every nitty-gritty detail yourself:
  • Writing platform-specific code for receipt validation (Apple’s App Store and Google Play have very different validation workflows)
  • Syncing subscription statuses across devices
  • Handling purchase recovery, refund notifications, and subscription cancellations
  • Debugging edge cases like network failures mid-purchase
• Best for: Teams with the bandwidth to build and maintain custom IAP logic, or apps with highly specialized purchase flows that don’t fit off-the-shelf tools.

Pros & Cons of RevenueCat #

• All the heavy lifting done for you: RevenueCat wraps both App Store and Google Play IAP APIs into a single, Flutter-friendly SDK. You don’t have to worry about platform-specific validation, subscription state management, or handling edge cases like expired subscriptions or refunded purchases—their backend handles it all.
• Built-in analytics & dashboard: You get a web dashboard to track purchases, subscription retention, and user segments without building your own backend for this data.
• Free tier for small-scale apps: Their free plan covers up to $10k in monthly revenue, which is perfect for most early-stage or mid-sized apps. Paid tiers scale as your revenue grows.
• Minor tradeoffs: You’re adding a third-party dependency, so if their service has an outage, it could temporarily impact your IAP flow (though their uptime track record is solid). Also, if you have super custom IAP logic that deviates from standard subscriptions/one-time purchases, you might hit limitations.

Recommendation for Your Live App #

• Go with RevenueCat if: You want to launch IAPs quickly, minimize bugs from platform-specific edge cases, and don’t want to spend weeks building and testing custom backend logic for receipts and subscriptions. This is the most common choice for cross-platform Flutter apps because it saves so much time.
• Stick with in_app_purchase if: You have strict requirements to avoid third-party services, or your app has unique purchase flows that can’t be easily accommodated by RevenueCat’s SDK. Just be prepared to invest more time in testing across both App Store and Google Play to catch platform-specific issues.

内容的提问来源于stack exchange，提问作者Ayse