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.
Apple繼續關顧舊機,iOS 8.3 令iPhone 4s跑得更快! https://qooah.com/2015/02/26/ios-8-3-iphone-4s-performace/