I just wanted to tell u that this is a whatsapp app.In this people can talk to any one which is present in our contacts.Great specifications n many advantages to use this app.Can share any media to anyone.It has been launched in 2009.At the start it can support only java n android phones.Now it is trending to much in the market by upadating this app again n again by adding some new features.Nowadays people use it to communicates wid the anyone for their personal work.Great advantangeous to us.He became so much popular that owner of facebook has been catch the whatsspp owner into his company.Whatsapp app has been sold now to facebook owner.U will able to seen whatssapp app in every people android phones.Easy to use.All marketing n business n enginerrs workers labourer and students it will be helpful to each n everyone.