The Outlook mobile app can sync email, contacts, calendar and files from Office 365. See the websites below to learn how to get more out of your Outlook app on iOS or Android devices.
Optimize Outlook Mobile
In-App Help for Outlook Mobile
Outlook for iOS and Android videos
Troubleshoot Outlook Mobile
FAQ for Outlook Mobile
Note: To find out if your iOS or Android device can run the Outlook app, see system requirements