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.
看看iOS 8.0是如何讓第三方App使用Touch ID的! https://qooah.com/2014/07/01/ios-8-1-password-beta-demo/