It is a new product which was lauched few years back.it is an app which comprises all the functions like sending ppt pdf xls file.and aswell as we can call friends and relatives.and videochat chat absolutly free. As I am a college stundent whattsapp plays an important role in my life.
My friend send me notes and lectures .and they send me important dates. We send funny video in the end of the day to lift up our mind. In todays generation .whattsapp can be seen everywhere. . It is getting better and better now .the messages and all things what I do in whattsapp are totally increpted.so I would like to see everyone to use whattsapp.and its totally free.ypu dont have to spend any money to it.