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.
chmod 777 修改權限 https://blog.wongcw.com/2019/03/11/chmod-777-%e4%bf%ae%e6%94%b9%e6%ac%8a%e9%99%90/