Earlier this year, we launched add-ins for Outlook on iOS, bringing your favorite apps right in Outlook—so you can get more done on the go. Add-ins are now rolling out to Outlook on Android customers with Outlook.com and Office 365 email accounts, over the new few weeks. Here’s how you can get started with add-ins :
Go to Settings > Add-ins and then tap the + sign next to the add-ins you want to enable.
When you go back to your inbox and open an email to read, you will see the “…”in the email header. Tapping this will let you launch the add-ins you enabled.
Once enabled, you can access add-ins from Outlook on Android and iOS as well as from Outlook 2016 or 2013 for Windows, Outlook on the web and Outlook 2016 for Mac for the same Outlook.com or O365 commercial (Exchange Online) email account.