Whatsapp is the most used android application all over the world and in last year facebook purchased this application in a whopping$18 billion and I am using this application from last 5 year.
I am really very satisfied with application because it is completely free earlier it was paid but now it is completely free and this is really very easy to use we can chat with anyone instantly and recently whatsapp introduced a new feature of that is really awesome and we can also send and receive imaged and videos and even we can share our location with anyone the whatsapp was founded by two americans . now I would like to tell some pros and cons.
pros.
This is really very easy to use .
There is no charges of use it is completely free.
cons
Anyone can add anyone by just contact number.
Some privacy matter.