How to remove your account and everything in it
Google Play requires a way to ask for account deletion from outside the app as well as inside it. Both are below.
Open More → Account → Delete account, and confirm. [CONFIRM THIS PATH MATCHES THE APP BEFORE PUBLISHING.]
Write to [DELETION EMAIL] from the email address you signed up with, asking for your account to be deleted. We will confirm and complete it within [NUMBER] days.
Deletion cannot be undone. Export anything you want to keep first — most screens have an export, and your documents can be shared out of the app one at a time.
A subscription bought through an app store is cancelled separately, in that store. Deleting your account here does not stop the billing.