Mobile Apps have revolutionized the world. They are like the pop singers, who create their notoriety to get more popularity. And although there may be numerous best instant messaging apps in the market, it is not always necessary that all of them are going to be good ones.Hence in the world of digital market the apps which have good features will grab the popularity, something similar to Viber, chat application, which is making its space in the market as an application for smartphones and allowing friends to connect with its articulate free voice calls which reflect the quality as well as clarity of the application.