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.
預防再中風 https://www.brain-classroom.com/2015/03/%e9%a0%90%e9%98%b2%e5%86%8d%e4%b8%ad%e9%a2%a8/