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.
記憶力衰退? https://www.brain-classroom.com/2017/06/%e8%a8%98%e6%86%b6%e5%8a%9b%e8%a1%b0%e9%80%80/