In 2009, Brian Acton and Jan Koum, two former Yahoo! employees, launched WhatsApp, a simple messaging app that allowed users to send text messages, images, and videos over the internet. The app quickly gained popularity, and by 2011, it had become one of the most downloaded apps on the Apple App Store.
In 2009, Brian Acton and Jan Koum, two former Yahoo! employees, launched WhatsApp, a simple messaging app that allowed users to send text messages, images, and videos over the internet. The app quickly gained popularity, and by 2011, it had become one of the most downloaded apps on the Apple App Store.