It may be deleted from your phone with only a few touches, just like any other programme from an external source. If you use Messenger on a phone that is running a current version of Android, click the icon for Settings, and then pick Apps & Notifications from the menu that appears. Find the icon for Messenger; if you do not see it, you must first choose See All Apps (or App Info) from the menu. Tap the choice to uninstall the programme.