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.
四葉砌積木 http://traveling-fish.tixmart.org/2010/08/01/%e5%9b%9b%e8%91%89%e7%a0%8c%e7%a9%8d%e6%9c%a8/