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.
忽然失憶 https://www.brain-classroom.com/2013/07/%e5%bf%bd%e7%84%b6%e5%a4%b1%e6%86%b6/