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.
班上的布置 https://willywah.net/2008/02/%e7%8f%ad%e4%b8%8a%e7%9a%84%e5%b8%83%e7%bd%ae/