Office 365 - Issues with the OWA app for Android and iOS
At this time, the OWA app for Android and iOS devices will not work against our implementation of Office 365 due to the fact that UW-Madison authenticates to campus services with Shibboleth and this is not supported by the OWA mobile application. Microsoft is aware of this issue and will be providing an updated version of this application which will provide this connectivity in the future.
There is an application for mobile devices to connect to Office 365 called "OWA". This is not the same as Outlook Web App via a web browser.