Extend Outlook 2013's feature set with these five free apps
One of the nice things about Outlook 2013 is that it is extensible through the use of apps. You can install an app for Outlook 2013 by clicking on the Files menu and then clicking the Manage Apps button and following the prompts. Once you install an app, it will be invoked automatically when you compose or view a message — but only when appropriate. For example, an app that is designed to map addresses is typically invoked only when you open an email that contains an address. Apps are accessible via a link located just above the message body.
Let's take a look at five free Outlook 2013 available from the Office Store. (Note: These apps require a connection to Exchange Server 2013.)
This gallery is also available as an article.