The application was created in 2009 by Jan Koum and Brian Acton, two former employees of the IT company Yahoo! The name comes from the union of the English What up, which means how are you ?, and the App, or the application. Initially, the application was developed for iOS, and then spread across all major smartphone operating systems.
In June 2012 the company announced via Twitter that it had spent the 27 billion messages exchanged daily. Contrary to what one might think, this has not translated into a reduction of SMS traffic, which increased in 2013 worldwide.
This messaging application immediately after installation operates for a trial period of one year and then the user pays an annual fee for both standard Android, BlackBerry or Windows Phone (less than a monthly Euro in several European countries). It was subsequently introduced the possibility to subscribe for three years or five years at promotional prices and the ability to pay for a friend. (2.45 and 3.84 Euros respectively)
IOS platform for a fee of 1 € at once, the first download was required. This policy has provoked strong protests mainly because users are not Apple.
Since August 2013, new users of Apple and Android, using the service through a free trial period and a subscription to the subsequent year.
On December 3, 2013 was released the version for iOS 7, two and a half months after the release of the same name by Apple operating system.
The February 19, 2014, Mark Zuckerberg, CEO of Facebook, announced the acquisition of WhatsApp for $ 19 billion.
According to official data, in April 2014, WhatsApp can have 500 million active users per day 700 million exchange pictures and about 10 billion text messages, after six years from the creation .
In August 2014, Jan Koum, WhatsApp CEO, announced on Twitter that exceeded the threshold of 600 million monthly active users, an increase of 20% in just four months.
You are always on my line
interesting story level
Many very young people considers Whatsapp the only communication way.