WhatsApp is an application which is used to share the images, videos, documents, ppts, pdf files & many more.
By using This app 2 or more people can chat and have a healthy conversation among themselves.
Now a days people are very much intrested in chatting. They are spending lot of time for itself.
It is easy to understand, the designers had designed this application like that.
Updates given by the developer is amazing and extra-ordinary.
Finally one thing to say, this application is USEFUL.