Koine Greek Vocabulary
Email justinjoejones@protonmail.com and you'll get a reply. Including your device model and iOS version helps.
Open the app, tap any locked deck, and choose Restore purchase. Make sure you're signed in with the same Apple ID you bought it with. The unlock is a one-time purchase tied to that Apple ID and works on all your devices.
Progress is stored on the device and is not synced between devices or backed up to a server. Deleting and reinstalling the app clears it. If it vanished without a reinstall, please email me — that's a bug and I want to know.
Check Settings → Notifications → Koine Greek Vocabulary and confirm Allow Notifications is on. If you declined the permission prompt the first time, it must be re-enabled there; iOS won't ask again.
That's intended — the Word of the Day changes once per day at midnight.
Refunds are handled by Apple, not by me. Visit reportaproblem.apple.com and sign in with your Apple ID.