I bought Premium, but LongTimer does not recognize it. What can I do?
Make sure you are signed in with the Apple ID that made the purchase. Check your internet connection, open LongTimer, and use the restore purchases option. It can also help to close and reopen the app.
If the purchase still is not recognized, wait a short while because App Store purchase information can occasionally be delayed. If the issue remains, open a support ticket and include the purchase date, app version and iOS version. Do not include full payment details.