1,544 total votes
WhatsApp

WhatsApp

WhatsApp Messenger is a proprietary, cross-platform instant messaging subscription service for smartphones with internet access. In addition to text messaging, users can send each other images, video, and audio media messages. The client software is available for Google Android, BlackBerry OS, BlackBerry 10, Apple iOS, Nokia Series 40, Symbian S60, Nokia Asha platform and Microsoft Windows Phone. WhatsApp Inc. was founded in 2009 by American Brian Acton and Ukrainian Jan Koum, both former employees of Yahoo!, and is based in Mountain View, Santa Clara County, California. Competing with a number of Asian-based messaging services, WhatsApp handled ten billion messages per day in August 2 ... more on Wikipedia

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