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://book.icfi.ir/book/42239/مقاله-پژوهشی-در-علوم-پایه-از-نگارش-تا-انتشار