WhatsApp Messenger is a proprietary, cross-platform instant messaging subscription service for smartphones that uses the internet for communication. In addition to text messaging, users can send each other images, video, and audio media messages as well as their location using integrated mapping features. The client software is available for Google Android, BlackBerry OS, Apple iOS, selected Nokia Series 40, Symbian, selected Nokia Asha platform, Microsoft Windows Phone and BlackBerry 10. WhatsApp Inc. was founded in 2009 by Americans Brian Acton and Jan Koum (also the CEO), both former employees of Yahoo!, and is based in Mountain View, California. The company employs 55 people.
As of 23 April 2014, WhatsApp had over 450 million monthly active users, 700 million photos are shared each day, and the messaging system handles more than 10 billion messages each day. In a December 2013 blog post, WhatsApp claimed that 400 million active users use the service each month.
On February 19, 2014, Facebook Inc. announced it is acquiring WhatsApp Inc. for US$19 billion. Facebook will pay $4 billion in cash, $12 billion in Facebook shares and $3 billion in restricted stock units to be granted to WhatsApp founders and employees that will vest over four years.
WhatsApp uses a customized version of the open standard Extensible Messaging and Presence Protocol (XMPP). Upon installation, it creates a user account using one’s phone number as the username (Jabber ID: [phone number]@s.whatsapp.net). WhatsApp software automatically compares all the phone numbers from the device’s address book with its central database of WhatsApp users to automatically add contacts to the user’s WhatsApp contact list. Previously the Android and S40 versions used an MD5-hashed, reversed-version of the phone’s IMEI as password, while the iOS version used the phone’s Wi-Fi MAC address instead of IMEI. A 2012 update now generates a random password on the server side.
WhatsApp is supported on most Android, BlackBerry, iPhone, Nokia, and Windows smartphones. All Android phones running the Android 2.1 and above, all BlackBerry devices running OS 4.7 and later, including BlackBerry 10, and all iPhones running iOS 4.3 and later. However, some Dual SIM devices may not be compatible with WhatsApp, though there are some workarounds for this.
Multimedia messages are sent by uploading the image, audio or video to be sent to an HTTP server and then sending a link to the content along with its Base64 encoded thumbnail (if applicable).
Operating system :
- BlackBerry OS
- BlackBerry 10
- Nokia Series 40
- Nokia Asha platform
- Windows Phone
- Mountain View,
- Jan Koum
- Brian Acton
Parent: Facebook Inc.
The Key Features Of Whatsapp Messenger:
- Instant messaging: this is one of WhatsApp Messenger’s main features. In fact, this application enables to exchange instant messaging to your friends and contacts. With a quite awesome pretty interface, you can also enjoy of a group conversation with your contacts if needed. If you are away, the application can record your offline messages so that you can read later on.
- Multimedia: apart from that, users can also transfer multimedia files to contacts. For instance, you can send videos, images, and even voice notes to your friends. They can also send you multimedia files that you can play thanks to your mobile phone multimedia player.
- No pins or usernames: what makes it interesting is that it requires nor pins nor usernames. So then, no need to remember another PIN or username sins WhatsApp Messenger just work like an SMS. This means that it works via phone numbers and integrates with your address book.
- Miscellaneous: WhatsApp Messenger does not require the adding of buddies and contacts and no international charges. The application also enables to block contacts, share location, keep track of email history, personalize notification sounds and many other features.
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