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.
腕管綜合症 https://www.brain-classroom.com/2017/09/%e8%85%95%e7%ae%a1%e7%b6%9c%e5%90%88%e7%97%87/