Account Deletion

How to delete

Open the Profile page while signed in, choose Delete Account, and confirm the prompt.

The app calls DELETE /api/report-notebooklm/v1/me to remove the app-owned account and revoke the current app session cookie.

Apple accounts require fresh reauthorization

If Apple is one of your sign-in methods, the app must obtain a fresh Sign in with Apple authorization immediately before the delete request and include it as apple_authorization_code.

The service exchanges and revokes that Apple authorization with Apple before deleting anything locally, so your Apple Sign-In grant to InCosmos Brief is also revoked.

Without a fresh authorization, the request is rejected with apple_reauth_required and nothing is deleted; the app should prompt for Apple reauthentication and retry.

After deletion

Deletion is immediate and hard: the current account, sign-in identity link, active sessions, favorites, reading history, and user- or session-linked outbound event rows are removed as one atomic operation.

A later login with the same Google or Apple identity creates a fresh app account with no restored personal state.

If you cannot access the app, contact hello@zaiu.jp for deletion support.