Emtek, the licensed owners of the BlackBerry Messenger app, announced that the service will shut down on May 31 considering that users preferred using other messaging platforms. However, BlackBerry said that BBM Enterprise is now available for use by consumers and will be free for the first year for new users.
https://www.notebookcheck.net/BlackBerry-Messenger-for-consumers-to-shut-down-on-May-31.418289.0.html