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.
TLSその② http://www.slj-co.jp/2018/10/01/tls%e3%81%9d%e3%81%ae%e2%91%a1/