Email change after signup is not currently possible.
When signing up, you should make sure to use your personal long-term email. We recommend using your personal email and not a student email or work email, which may need to be changed in the future. This is a good security practice both for Gyroscope, as well as all sensitive accounts.
After signup, an email address is not necessary for using the Gyroscope app — you can also log in with your username (not email) & password.
The only time you would ever really need to use the email address associated is if you forget your password, so we recommend saving that it in 1password to avoid that scenario.