Onefast
Email zenDesign219@gmail.com. Please say which iPhone and iOS version you use, and the language you have chosen in the app.
The lock screen stopped showing my fast. iOS shows a Live Activity for at most 8 hours at a time, and only lets an app start one while it is open. When you open Onefast, the lock screen comes back on its own. In between, the widgets keep counting — add the lock screen widget from the lock screen editor. The timer in the app is always right.
I forgot to tap End. Open History, tap the fast, and change the end time. The app checks that it does not overlap another fast and tells you if it does.
Notifications don't arrive. Check iPhone Settings › Notifications › Onefast is allowed, then check the switches in Onefast › Settings › Notifications. Each notification has its own switch.
I bought Pro but the app says I'm not Pro. On the Pro screen tap Restore next to the price. The app always tells you what happened. If you bought with a different Apple Account, sign in with that account in iPhone Settings first.
My history is missing on my new iPhone. Check both phones are signed in to the same Apple Account and that iCloud backup shows "On" in Onefast › Settings. Sync can take a few minutes on first launch.
Apple Health shows "Denied". iPhone Settings › Health › Data Access & Devices › Onefast, and allow Weight. Your readings are kept in the app either way.
Can I fast longer than 24 hours? Yes. At 24 hours Onefast asks once whether you meant it, then counts up to 7 days.