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.
達文西密碼 https://www.brain-classroom.com/2014/03/%e9%81%94%e6%96%87%e8%a5%bf%e5%af%86%e7%a2%bc/