WHATSAPP
WhatsApp
WhatsApp Messenger is a proprietary, cross-platform instant messaging subscription service for smartphones. 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 and Symbian S60, and MS 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 Santa Clara, California.
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