1. Click on the ≡ icon on the top left-hand corner to open the side menu of the app. Then, select "User Settings".
2. To change your account password, click on "Send Password Reset". You will then receive a link in your email to reset your App account password.
3. To change your account email, erase your existing account email and then enter your new email address under "Account Information". Enter your current account password and then press "Save Changes".
You can watch videos on how to update your account password by clicking on the below links:
How to Update Account Password (Android)
How to Update Account Password (iOS)