Using CRM for Phones on iOS 9.2 against a CRM 2016 (v8.0) IFD deployment. IFD works great in a browser from same device.
After entering the URL (it is not a redirect, it is 
) the app goes from the blue setup screen to a white screen with a large arrow in the upper left.
I expect this is where my Windows 2012 ADFS Server should be prompting for credentials.
Restarting the iPhone doesn't help.