Support for Outlook App on iPhone
It would be great if you could support the Outlook App on the iPhone in addition to OWA app already supported.
James Fox shared this idea
Great news! We now offer support for the Outlook app, on Iphone. To find out more, visit the following link on how you can start saving emails directly to SharePoint via Outlook app for iOS
We're waiting on Microsoft to provide Add-in support for the Outlook App.