Its an instant messaging service for smartphones to send message,image,video , audio and group conversations between multiple users . The name “WhatsApp” came from the greeting phrase “What’s up?” (“what is going on” or “how are you”!).
An instant messaging system for smartphones from WhatsApp Inc. Founded in 2009 by Brian Acton and Jan Koum and running on all major smartphone platforms, WhatsApp uses the Internet as an alternative to the SMS text messaging system. Via Wi-Fi, phone subscribers pay nothing for WhatsApp messages. With more than 400 million monthly users worldwide and billions of messages sent each day, in February 2014, Facebook announced its intention to acquire the company for USD $19 billion.
WhatsApp lets you send texts for free. Yes, 100% free. You will never be charged for a text sent through WhatsApp. This is because WhatsApp sends messages through an internet data connection. WhatsApp is cross platform. Regardless of whether you have WhatsApp installed on your iPad, Blackberry, Nokia or Android phone, you will be able to send messages to anybody who also has WhatsApp installed.
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