Today as it launched version 2.1 of Outlook for iOS, Microsoft announced a new feature for the app: add-ins. Add-ins are a form of integration with both third-party and first-party services that ...

To install add-ins in Outlook for Android, follow these steps- Open the Outlook app on your Android mobile. Tap on the Outlook logo visible on the top-left side.

Older add-ins will still work with Office 2013, but the newer Apps only work with the latest Office suite. Here are some of the most useful free ones available.

The list of supported add-ins includes Evernote, Microsoft Dynamics 365, Microsoft Translator, Nimble, OnePlaceMail, Outlook Customer Manager, Smartsheet, and Trello.

These add-ins are supposed to help users be more productive by letting them stay inside Outlook. Here’s how it works: users go into the Outlook for iOS settings panel and tap the Add-Ins menu.

But take advantage of these six add-ins to make it easier than ever to create engaging presentations. The opinions expressed here by Inc.com columnists are their own, not those of Inc.com.