You can always delete your account
The Premium version of the Piston application uses Firebase Auth with Google as the OAuth provider. When you login for the first time a new account is created for you in a database. This account is used to backup and synchronise between your devices your faults related actions like reading faults and associated fault codes.
You can always delete your account in the Piston application. Just navigate to the Settings screen and find the Delete Account option in the Privacy section.
If you don’t have the application installed any more or are having troubles deleting your account from the application you can always contact us via email support@piston.app and we will assist you with the account deletion request.
Please remember that account deletion is permanent and once done all your data (like historical fault codes) will be deleted as well.