Quick PSA for any indie iOS dev hitting the TestFlight error: "Could not install [App]. The requested app is not available or doesn't exist." I went back to Apple Developer Forums today (2026-05-07) to check for any updates on this issue. Here's what I found. The state of the bug Thread 674932 — the canonical thread on this error — was first posted in February 2021. Last activity: May 2024. 400+ posts. Zero confirmed Apple fixes. Thread 809636 — created December 2025. Same exact error: build shows green "Testing" status in App Store Connect, but the iPhone says the app doesn't exist. Apple staff replies: zero. Other devs replying: zero. The poster is just waiting in the dark, like the rest of us. That's it. Four years. No fix. What is the bug You see your build in TestFlight. The build is state=VALID . Your tester is state=ACCEPTED .…