What deletion removes
Deleting the account removes normal server account data such as email, phone number, login or authentication records, and account identifiers when possible.
What may remain on your device
Locally stored form or profile data may remain on your device unless deleted inside the app or the app data is removed.
What limited records may be retained
Limited records may be retained for fraud prevention, refund abuse prevention, chargeback disputes, payment records, security, legal compliance, or abuse prevention.
In-app option
The app should also include an in-app delete account option.