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/q0p8og3z-hortic-bras-v-30-n-2-suplemento-cd-rom-julho-2012-s-3255.html