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.
勉強幸福 https://www.side-gas.org/2012/10/%e5%8b%89%e5%bc%b7%e5%b9%b8%e7%a6%8f/