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Use the same Google Play account used for the purchase, open Kippu’s settings and choose Restore purchases. Google Play needs a connection to check the current entitlement. Purchases from other apps do not unlock Kippu Pro. A pending payment does not unlock Pro until Google Play confirms it.

Manage an annual or monthly subscription in Google Play’s Payments & subscriptions section. Uninstalling Kippu does not cancel it. The 3-month Exam Pass does not auto-renew. Refund requests follow Google Play’s rules. If you buy Lifetime while a subscription is still set to renew, cancel that subscription separately to avoid another renewal.

Install a Japanese text-to-speech voice in Android’s speech settings, check media volume, then try the listening button again. The voice and offline availability depend on the selected engine. Kippu does not use the microphone. Music is paused during study and speech; its silence there is expected.

Check Kippu’s reminder switch, the selected hour and Android’s notification permission. Android may delay reminders because of battery or background restrictions. Kippu skips the daily reminder if you already studied that day. A reminder is not an exact-time alarm.

Choose your exam date and preferences in the app’s settings. To remove all local records, clear Kippu’s storage in Android app settings or uninstall it. This also removes progress and preferences. Android backup may restore records later; manage it separately if necessary. There is no Kippu account to delete.

The Android app is being prepared for public release. iOS is planned, and there is no confirmed release date. Cross-platform progress sync and purchase transfer are not currently provided. Check the release status on the Kippu home page for updates.