Download from Google Play.
4.4 + need to root your device to broadcast/record.
5.0 + needn't to root only if you want record internal audio.
3 Mode of Broadcast (Only for Android)
Public: Share with everyone.
Only Me: The best way to test and improve the quality of your broadcast.
Friends: It is the private broadcast that can only share with you friends.
To broadcast Camera, finding this feature at your profile page. Only for iOS now.