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://www.digikala.com/product/dkp-352880/کتاب-قدم-اول-هاوکینگ-اثر-جی-پی-مک-اوی