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.
影片測試 iPhone 4s 升級至 iOS 8.1.1 後速度略有提升! https://qooah.com/2014/11/05/iphone-4s-ios-8-1-1/