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.
腦癇證人 https://www.brain-classroom.com/2014/05/%e8%85%a6%e7%99%8e%e8%ad%89%e4%ba%ba/