Whats app is the Application of the smart phone. Which is operates through internet and use for the communication.It was developed by Brian Acton and Jan Koum in 2009. This Application Runs on all of the operating System like IOS, Android, Windows Phone, Nokia, BlackBerry OS. With the help of this application world has come closer. friends, Family Member Creates their own Group and chat with each other. Whats app Provides to upload profile picture and status.
On 19-2-2014 Facbook Declared that they have bought Whatsapp Service at US $19Billion Which was the Highest Payment. $4 Billion was Cash Payment. $12 Billion in Facebook shares and $3 billion in restricted stock units to be granted to Whats App's founders Jan Koum and Brian Acton. Currentntly There is 55 Employee working on Facebook.