Support

Questions, bugs or ideas? Write to leshaelin@gmail.com — we usually reply within two working days. Please mention your device, iOS or macOS version and the app version (Profile, at the bottom).

Found a mistake in an answer or a challenge?

Tap "Spotted a mistake?" under the article or challenge in the app. The report goes straight to us with the item attached, so we can fix it quickly.

Subscriptions

• Restore PRO on a new device: Profile → Get subscription → Restore purchases. Use the same Apple ID you bought with.
• Cancel a subscription: Settings → [your name] → Subscriptions → DevPrep. Deleting the app does not cancel it.
• Refunds are handled by Apple: reportaproblem.apple.com.

Reminders and news

Turn the daily reminder and news notifications on or off and change the time in Profile → Notifications.

AI features

Answer review, AI hints and the AI interview need an Apple Intelligence device (for example iPhone 15 Pro or later) on iOS 26 or later with Apple Intelligence turned on, and currently work in English. On other devices these buttons are hidden.

Your data

DevPrep has no accounts; your progress syncs through your iCloud. See the Privacy Policy for what the app collects and how to request deletion.