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.
http://filekarr.farafile.ir/file/19751/خلاصه-فارسی-و-اصل-مقاله-انگلیسی-درباره-نرم-افزارهای-متن-باز