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.
Olha esse link: Telma Leda Gomes de Lemos [ https://pgquim.ufc.br/pt/telma-leda-gomes-de-lemos/ ]