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.
在那裡啊... https://cat-sky.tw/2017/02/18/%e5%9c%a8%e9%82%a3%e8%a3%a1%e5%95%8a/