How can I free up space on my iOS device so Outlook and other apps can run more smoothly?

To help Outlook Mobile and your device run better, you can clear space on your iOS device. This is space is used for storing data, like music and other apps. 

1. Open your device's Settings app.
2. Tap General.
3. Tap iPad/iPhone storage.

Some suggestions: 

1. Save pictures on a computer or cloud service and delete the copy from device.
2. Uninstall apps that you are no longer using.
3. Remove music and other files that you are no longer using such as videos.