At a keynote presentation at the Mobile World Congress in Barcelona in February 2014, Facebook CEO Mark Zuckerberg said that Facebook's acquisition of Whats App was closely related to the vision.
Koum changed Whats App so that when a user's status is changed, everyone in the user's network would be notified.
Whats App 2.0 was released with a messaging component and the number of active users suddenly increased to 250,000.
The application runs from a mobile device though it is also accessible from desktop computers; the service uses standard cellular mobile numbers.
Originally users could only communicate with other users individually or in groups of individual users, but in September 2017 Whats App announced a forthcoming business platform which will enable companies to provide customer service to users at scale. in September 2007, the duo traveled to South America as a break from work.
On February 26, 2016, Whats App announced they would cease support for Black Berry (including Black Berry 10), Series 40 and Symbian S60, as well as older versions of Android (2.2), Windows Phone (7.0) and i OS (6), by the end of 2016.