Apple rejected the app under 2.5.4 — ‘unable to play audio in the background’ — but the code was right all along; the reviewer just never pressed Play. Plus a sneaky sequel to yesterday’s edit-mode fix: the invariant broke the moment you backgrounded the app.
The app came back rejected for an unresponsive IAP button. Tracking it down led through four separate bugs in the purchase flow, plus a handful of smaller fixes: edit mode not exiting on play, background audio sync, and a haptics regression on iPhone 15 Pro.
A full day of iOS feature work — tap tempo, playlist management, export/import, library editing, StoreKit IAP — ending with a successful TestFlight submission and a real test purchase.
A full rework of the iOS main screen: a proper two-panel layout that adapts to portrait and landscape, a redesigned controls section, and a more stage-friendly playlist.
First day of the SwiftUI port. Most of Phase 5 cleared in one sitting — because the shared KMP module already handled the business logic, only the platform-specific layers (audio engine, file storage, UI) needed iOS implementations. The workflow also shifted: Claude wrote the Swift directly instead of routing through an in-IDE AI.