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 Tips] 關於相機和照片App的五大功能改進 https://qooah.com/2011/11/03/ios-5-tips-five-new-features-of-camera/