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.
腦退化症照顧篇:家居安全 https://www.brain-classroom.com/2016/02/%e5%ae%b6%e5%b1%85%e5%ae%89%e5%85%a8/