Customer wants Mobile, but doesn't want to sign on all the time. They think they need Single Sign On (SSO), but we all know SSO isn't a feature available for Mobile.
However my own testing reveals the user only needs to sign on once. The user can leave the app, return later and the logon information is retained, no need to sign in again. This was tested for both Android and iPhone.
So I think while SSO isn't a thing with Mobile, they only have to enter their PW once, and then again when their PW does change. Would you agree?