Changing the email address on an account is not available yet. Account → Profile shows your address as read-only.
If you need to move to a different address, email support@urlcrop.com from your current account email and we will help after verifying your identity. Invoices go to the organization's billing email, which is separate (Billing → Settings).
If you signed up with Google or a sign-in link and want a password, choose Set a password under Account → Security; we email you a link to create it.