After login, click "Settings" under the wheel icon at the upright corner of the page.
Then click "Account" to change your email address and password
If you are using iOS App:
After login, click the photo icon on the bottom right
Click the button on the top right to go to setting page
Then click email and password to change it
If you don't remember your current password, please contact with 2redbeans customer service (firstname.lastname@example.org).