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.
後悔升級至iOS 8.0?你現在還有機會降級至iOS 7.1.2! https://qooah.com/2014/09/22/how-to-downgrade-ios-8-to-7-1-1/