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.
成长的焦虑 https://lyjhc.com/2013/12/%e6%88%90%e9%95%bf%e7%9a%84%e7%84%a6%e8%99%91.html