At its BlackBerry Live conference in Orlando, Fla., BlackBerry announced that it's finally bringing its BlackBerry Messenger service (BBM) to. The app allows you to send messages and photos using your Internet connection, rather than using your text allowance.
It'll be going up against messaging apps WhatsApp and Viber, both of which offer very similar services and are already available across iOS, Android, and other platforms. I've pitted all three against each other to see which should take pride of place on your phone.
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