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.
iOS 6 Beta 2 推出, 這些就是已知的新增或改善之處 https://qooah.com/2012/06/26/ios-6-beta-2/