How can we help?

Common questions

Restore Full Access

Open Settings in Chang Dao and choose Restore Purchases. Use the same Apple Account or Google Play account that completed the original purchase.

Speech is preparing

After first launch, Chang Dao prepares an approximately 175 MB offline voice model. If you tap Listen before it is ready, the app shows download progress and can resume after an interruption. Once installed, the voice remains available across launches and works without a connection.

Daily reminders

Daily reminders are currently available on iPhone and iPad. Open Me, then Settings to change the reminder. If alerts do not appear, check the Chang Dao notification setting in iOS Settings.

Bookmarks and progress

Pull down at the top of a chapter to add or remove its bookmark. The app stores bookmarks and reading progress locally; your operating system may include eligible reading preferences in device backup or transfer when that feature is enabled.