Want to know about whatsapp???? Have a look at it...

2. History
• WhatsApp Inc., was founded in
2009 by Brian Acton as well as Jan
Koum, both previous staff
members of Yahoo!. After Koum
and also Acton left Yahoo!
• In September 2007, the duo
travelled to South Americaas a
break from job.
• presented Koum to Igor
Solomennikov, a developer in
Russia that he had found on
RentACoder.com. Koum virtually
right away chose the name
"WhatsApp" considering that it
seemed like "exactly what's up",
as well as a week in the future his
birthday, on February 24, 2009,
he included WhatsApp Inc

3. Features
Chat
Group
chat
Voice
call
Basic
Features
Additional feature (comparing with Facebook messenger)

4. Whatsapp Web WhatsApp was formally made available for
PCs with an internet client, under the name
WhatsApp Web, in late January 2015 with a
statement made by Koum on his Facebook
page: "Our internet customer is merely an
expansion of your phone: the web browser
mirrors chats and messages from your
mobile phone-- this indicates all your
messages still survive on your phone". The
WhatsApp customer's phone have to still
be connected to the Internet for the
browser application to work. All major
desktop browsers are supported with the
exception of MicrosoftInternet Traveler.
WhatsApp Internet's interface is based
upon the default Android one.
As of January 21, 2015, the desktop
computer variation was just offered to
Android, BlackBerry and also Windows
Phone individuals. Later, it also added
assistance for iOS, Nokia Collection 40, and
also Nokia S60 (Symbian).

5. Whatsapp User-count

6. Platform Support
After months at beta phase, the application at
some point released in November 2009
exclusively on the App Shop for the iPhone. In
January 2010, assistance for BlackBerry mobile
phones was added, and also consequently for
Symbian OS in May 2010 and also for Android OS
in August 2010. In August 2011 a beta for Nokia's
non-smartphone OS Series 40 was added. A
month later support for Windows Phone was
included, adhered to by BlackBerry 10 in March
2013. In April 2015, assistance for Samsung's
Tizen OS was added.
• The oldest device capable of running
WhatsApp is the Symbian-based Nokia N95
released in March 2007.
• In August 2014, WhatsApp released an update
to its Android application, adding support for
Android Put on smartwatches

7. Alternatives
Facebook
messenger
Hike
Viber
Kik messenger
We Chat