WhatsApp is the first smartphone messenger to appear in 2009. The software enables to send text messages, images, videos and sound files. Supports smartphones on Android, BlackBerry OS, BlackBerry 10, iOS, Series 40, Symbian (S60) and Windows Phone platforms.
The messenger was created by an American programmer of Ukrainian origin Ian Kum in collaboration with Brian Eckton. Development is underway in the city of Santa Clara in California.
In 2014, Facebook acquired WhatsApp for $19 billion. This has become the biggest deal in the startup industry.