Account and data deletion

Request account or data deletion

You can request deletion even without the app installed. Email [email protected] with subject “JLPT Master account/data deletion”. Say whether you want all account-linked information removed or only selected records.

If available, include your Firebase account ID shown in the app, or account email/public profile name so we can locate it. Anonymous guest users should include their account ID while they still have access. We may verify account control without asking for sensitive credentials. Never email passwords, sign-in tokens or card information.

• Email a deletion request

What will be removed

After verifying the request, the operator removes the Firebase account, synced study records, leaderboard entry, authored reviews, upvote memberships and identifiable multiplayer records. We will confirm completion or explain unresolved records and any necessary retention.

This manual request does not automatically clear your device, other devices or copies of public content made by others. Provider-managed logs/backups may expire separately. No fixed deletion deadline or backup expiry is promised until the operator confirms an operational process.

Clear device records separately

Request account/cloud deletion and wait for confirmation, or sign out to prevent synchronization. Then clear browser site data or Android app storage. This erases local progress/downloads and cannot be undone. Signing out alone is not deletion.

Do not uninstall just to fix an APK signing mismatch. Installing an update and deleting an account are different actions.