In-App Purchase Not Restoring Correctly Across Devices
A returning user taps Restore Purchases and gets "Nothing to restore" even though they own the product. Fix the StoreKit, validation, and entitlement layers.
#IAP
Articles tagged with #IAP
Restore Purchases Button Missing: Fix the 3.1.1 Rejection
Apple flagged your app under Guideline 3.1.1 for a missing Restore Purchases button. Add the button to your paywall and Settings, wire it to StoreKit, and resubmit.
Subscription Entitlement Mismatch After Purchase (StoreKit 2 Fix)
User paid but your app still shows free, or canceled but still Pro. The server-authoritative StoreKit 2 fix, with App Store Server Notifications V2 and reconciliation.
IAP Sandbox Purchase Fails: The 7-Point Diagnostic Order
Sandbox IAP has seven moving parts that must line up: the device Sandbox Apple Account, region, App Store Connect agreements, product status, bundle ID, capability, and StoreKit config file. The diagnostic order, current for iOS 18+ and Xcode 16 as of June 2026.
In-App Purchases with RevenueCat: a 30-Minute Setup (2026)
Set up iOS in-app purchases with RevenueCat in about 30 minutes: free up to $2,500/month tracked revenue, then 1%. Real product IDs, SwiftUI paywall code, sandbox QA, and when raw StoreKit 2 wins instead.