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.
Dropbox 慶祝使用人數超過1億,有條件送你免費100GB空間 https://qooah.com/2012/11/14/dropbox-up-to-100-million-users/