End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
Ustream將推新App,讓大家可以在FB直播任何表演或活動節目 https://qooah.com/2012/08/17/ustreams-new-broadcast-for-friends/