Zibao privacy policy · João D'Avila

Zibao does not collect, sell or share personal data.

What stays on your device: your progress, settings, review history and custom words are stored only on your device, in the app’s own storage.
No accounts, no analytics, no ads, no tracking. The app has no servers and contains no third-party SDKs.
iCloud (optional): if you turn on “Sync with iCloud” in Settings, Zibao saves one backup file in your own iCloud Drive container so your devices can stay in step. Apple stores it under your Apple ID; we cannot see it.
Backups you export: the file is created by you and saved or shared wherever you choose.
Notifications: reminders are scheduled locally on your device. Zibao asks for permission only when you turn reminders on.
Apple Watch and widgets: the watch app and widgets read the same progress. Your iPhone and Apple Watch exchange it directly through Apple’s WatchConnectivity; it never passes through a server of ours.
Speech: pronunciation uses the speech voices built into iOS. Nothing is sent anywhere.
Children: Zibao collects no data from anyone, including children.