WhatsApp cost established at 2009 by Brian Acton and January Koum, both once employees of Yahoo! . After Koum and Acton led Yahoo! In September 2007, the pair travelled to latin america to get a break from business. At one point, they used for businesses in Facebook but were refused. For the remainder of the coming ages Koum trusted on his $ 400,000 funds from Yahoo! . In Jan 2009, after buying the iPhone and recognizing the possibility of the app...
