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.
Linux 基础入门 https://blog.wongcw.com/2017/12/19/linux-%e5%9f%ba%e7%a1%80%e5%85%a5%e9%97%a8/