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.
SUM實在為你 https://motormag.com.tw/2020/07/31/sum%e5%af%a6%e5%9c%a8%e7%82%ba%e4%bd%a0/