Swift应用用户绑定型非消耗型In-App Purchase的恢复购买按钮疑问

Great question—this is such a common scenario when you’re tying in-app purchases to your own user account system instead of relying solely on Apple’s receipt infrastructure. Let’s break this down from both compliance and user experience angles:

• Apple’s Compliance Requirements: First off, Apple’s App Store Review Guidelines explicitly state that non-consumable purchases and auto-renewable subscriptions must include a way for users to restore their purchases. Even though your system marks accounts as Premium post-purchase, Apple’s review team still expects this option to exist. The key here is that Apple’s receipt system is the source of truth for purchase validity, and your account sync might not always cover edge cases (like a failed server sync after a purchase).

• Edge Cases Where Restoration Still Matters: Even with account binding, there are scenarios where a restore button becomes critical:

  • A user reinstalls your app or switches to a new device, and for some reason your server doesn’t immediately sync their Premium status (e.g., network delays, temporary server downtime).
  • A purchase was successfully processed by Apple, but your server never received the webhook or confirmation (maybe due to a network blip), leaving the user’s account unmarked as Premium.
  • Users who are familiar with IAP workflows expect to see a restore option—missing it might cause confusion or make them think their purchase was lost.

• Implementation Tips for Your Scenario: You don’t need to make the button front-and-center. Tuck it away in your app’s settings (under an "Account" or "Premium" section) to keep the UI clean. When the user taps it, you’ll still use the standard SKPaymentQueue.default().restoreCompletedTransactions() call, validate the returned receipts, and update the user’s account status on your server if a valid purchase is found. You can also add logic to automatically attempt a restore when a logged-in user accesses Premium features but their account isn’t marked as Premium—just be careful not to spam Apple’s API with too many requests.

At the end of the day, keeping the restore button is a low-effort way to stay compliant, cover edge cases, and avoid user frustration. It’s a small addition that can save you a lot of support tickets and review headaches.

内容的提问来源于stack exchange，提问作者Maximilian Krause