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幫你賺大錢,全球Apps收入中iOS App占近75%! https://qooah.com/2013/04/11/mobile-app-download-and-revenue/