Comes after long waiting the update to Facebook Messenger, thanks to which you can now install and use third-app without leaving Messenger.
Facebook Messenger for iOS also allows you to exchange messages via free Facebook Messenger using your own phone number: in essence, even if a friend is unreachable via Facebook, you can still send a message with Facebook Messenger completely free of charge.
Now you can send and receive GIF, video, photos and other files, you can view images and GIF can install and use other apps. Here you can find a list of apps already available in Messenger