Currently, the application is limited on some devices running Android 4.4 Kitkat or more with a small or medium screen size. Supported devices include Samsung Galaxy S4 and S5, Nexus 5, Moto X, Samsung Galaxy Note 3, Sony Xperia Z1 and Sony Xperia ZL, but Microsoft said it will support more devices in the future.
Microsoft launched OWA for iOS last summer, the Android version automatically syncs changes from device contacts to Office 365 , for example, if friends have changed phone numbers, they will sync up. Directory of Office 365.
Currently limited applications for Android users using Office 365 businesses. You can visit here for suggestions for Microsoft.