
Now, the Outlook Android app can sync your /Office 365 contacts to your phone's address book, but you actually don't need to install the app to do that. Microsoft explained it all on this support page, but configuring your /Office 365 account on an Android handset is not as straightforward as it is on iOS and Windows Phone. This adds an additional tap to access your full contact list, and using your phone's native Contacts app is usually much faster.


The latter is a solid email client, but Microsoft replacing the Contacts tab with a new Search tab in the app bar was a polarizing change.

You may want to do that if you prefer task-focused apps over all-in-one apps like Outlook for Android.
