What is Viber?

 

Viber is an application for making free calls over the Internet, including video calls, as well as for exchanging text messages, audio and video files. The program is implemented primarily for mobile devices based on platforms such as Android, iOS, Windows Phone, BlackBerry OS. Viber can also be installed on a regular computer running Windows, Mac OS or Linux.

The official website of the program is www.viber.com