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.
沙子與珍珠 https://terence0425.wordpress.com/2015/02/24/%e6%b2%99%e5%ad%90%e8%88%87%e7%8f%8d%e7%8f%a0/