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.
任何人都可安裝:iOS 9.0 首個公測版正式推出!(含教學) https://qooah.com/2015/07/10/how-to-install-ios-9-public-beta/