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.
https://1library.org/document/qopxl1jz-rev-bras-saude-prod-an-v-4-n-1-p-1-11-2003-issn.html