You can permanently delete your Arrow Escape account and all associated data. Deletion is immediate and cannot be undone.
If you can't access the app, email sudokumaster@gmail.com from the address linked to your account (or include your in-app display name), with the subject "Account deletion request". We will delete your account and data and confirm by reply.
Anonymous on-device progress that was never synced lives only on your device; uninstalling the app removes it.