This page works even if the app is no longer installed on your phone. We will send a one-time code to your account's email address; once you confirm it, your account is locked and everything on the server (shared routes, photos, room traces, your profile) is queued for deletion. The one exception is records of reports filed about you: those are kept until the retention periods in the privacy policy expire. This cannot be undone. This page cannot touch the data on your phone — the app's "Delete all my data" does that.
Your account is locked; your data on the server is fully deleted within a few minutes. You can open a new account with this address whenever you like.