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 7 beta 4 更新了些什麼?來看看這13項重點就知道! https://qooah.com/2013/07/30/ios-7-beta-4-what-is-new/