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.
給十年後的我 https://iamsy.com/%e7%b5%a6%e5%8d%81%e5%b9%b4%e5%be%8c%e7%9a%84%e6%88%91/