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.
一張圖表看完:你的iOS裝置能否支援 iOS 7.0 的新功能! https://qooah.com/2013/06/13/ios-7-compatibility-chart/