Frequently asked questions
Audio does not play
Make sure the device is not muted, increase media volume, and reopen the app. Learning audio is stored locally and does not require a network connection.
Progress and reinstalling
Progress is stored on the current device. Deleting the app removes learning records, and account-based or cross-device recovery is not currently available.
JLPT countdown
You can optionally enable the JLPT countdown on the Home screen and choose your exam date. Turn it off at any time if you are not taking an exam.
Optional support purchases
Support items are voluntary, one-time consumable purchases. They do not unlock essential learning features and never renew automatically.
Billing and refunds
All in-app purchases are processed by Apple. For purchase history, receipts, or refund questions, use Apple's Report a Problem service.
Open Apple Report a ProblemSupported devices and contact
The app supports iPhone and iPad running iOS 17 or later. To protect the developer's private contact details, this page does not publish a personal email address. Any future official product-support contact method will be added here.