The mobile app only supports logging in via email and password. Unfortunately, single sign on providers that are available on the web like Google, Intuit and Xero are not available in the mobile app.
If you signed up for the web app using one of the login providers mentioned above, you need to create an additional password for your account that you can use for the mobile app. Please follow the steps below to create a password:
1.) In the web version of the app go to the user account settings
2.) Click on the create password button
An email with instructions will be sent to your registered email address.
3.) Use your email address and newly created password to login to the mobile app
Tip: You can tick the "Keep me logged in" checkbox on your mobile device to avoid having to reenter your password.