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.
腦掃描萬能? https://www.brain-classroom.com/2013/05/%e8%90%ac%e8%83%bd%e8%85%a6%e6%8e%83%e6%8f%8f/