The account is the same on qtrl.me and in the QtrlMe mobile app (me.qtrl.app). Deleting it removes it in both places.
How to delete the account
In the QtrlMe app: go to Settings ā Account ā Delete account and confirm (with your password if the account has one). The account is deleted immediately.
Sign in on qtrl.me and go to Account ā Personal data. Choose Delete and confirm with your password. The account is deleted immediately.
Can't access the account? E-mail info@qtrl.me from the account's e-mail address with the subject "Delete account". We delete the account within 30 days and confirm by e-mail.
Your hubs
Your hubs are unlinked from the account. A hub and its devices belong to the physical hub, not to you, so it can be linked to a new account. If you pass the hub on, reset it first.