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.
iOS 5.0.1 發現Bugs,密碼鎖機後仍可進入電話簿和打電話! https://qooah.com/2012/02/21/ios-501-lock-screen-bugs/