Mobile app Battle.net by Blizzard will allow you to stay in touch with your friends anytime, anywhere. Chat, see who is doing what in games, and add new friends to your list – right from your mobile device.
MOBILE CHAT: Now you can even more easily and more conveniently agree on the time of a joint game, discuss a strategy or simply chat on a variety of topics. Even if your friend is not online right now, you can easily continue the conversation later thanks to the conversation history and notifications.
ALWAYS CONNECTED: you will always see what your friends are up to, and will be able to appear in the game at the right time.
MOBILE FRIENDS LIST: Quickly add friends and accept friend invitations right from your phone. In addition, with the help of a QR code, you can add as friends those with whom you communicated in person.