Delete your Corpus account
You do not need the app installed, and you do not need to be able to sign in.
What deletion removes
Everything. Every measurement, food and water entry, supplement and medication record, exercise log, blood-pressure and glucose reading, custom tracker, task and note — then the account itself.
Your encryption key is destroyed with it. That matters: it means any copy of your data still sitting in a database backup can never be read again, because there is no key left anywhere to open it. This cannot be undone.
If you can still sign in
That is the fastest route and it happens immediately — sign in, then go to Profile → Delete account.
If you cannot sign in
Use the form below. It does not delete anything by itself: it sends the request to the person who runs Corpus, who will confirm you are the account holder and then erase it. Deliberately so — otherwise anyone who knew your email address could destroy your records.