If you’re a Mac user, you can remove Outlook from your iOS device by following these steps:

  1. Open the Finder and navigate to the Applications folder.
  2. Drag and drop Outlook onto the Finder’s main screen.
  3. Choose Show Package Contents and open the Contents folder to find an application called “Outlook.”
  4. Drag and drop it into the Trash can in the Finder’s Applications folder.

  1. Open Outlook and click on “File” in the top left corner. Select “Exit” and choose to exit completely.2) Open Settings on your iOS device, scroll down to “Outlook,” then tap “Sign out.

How to remove account on Outlook / Hotmail | Mobile App