Hello friends I am aditya and I am going to shair my experience about this application which I have been using from three years.It concept is good it is straight forward simple for people, few years back it was bought by the owener of facebook and after that they made this application batter than what it was and its concept is very good like we can make online conference or vedio call or text messaging to whom we know .by just saving its phone number people are connecting.Its layout is simple which is good amd the icon of this application is also good its icon is releated to its concept.their is something not good in this application that is it has got very less features compair to facebook or any other social media application and it function is good but it is simple.It is very usersfriendly because when their is not any balance on my mobile I use this application to call through internet and sometimes I video chat with some of my friends through this application it is also users friendly because it has less features which makes it easy to operate and rhis application does not takes much space in mobile.