Developer(s): WhatsApp Inc.
Stable Release: Android version :APK v184.108.40.206
Type : Instant Messaging
Website : whatsapp.com
WhatsApp tops the list with over 1 billion
monthly active users.
All over the world and is used in 109 countries,
or 55.6 percent of the world.
1 billion messages a day is a significant
No international charges
No need to log in/out
No need to add buddies
And much more
Whatsapp Inc was founded in 2009 by two ex-Yahoo!
employees, Brian Acton and Jan Koum.
After having bought an iPhone .
Koum almost immediately chose the name WhatsApp
because it sounded like “what’s up,” and a week later
on his birthday, Feb. 24, 2009, he incorporated
WhatsApp Inc. in California.
HOW IT WORKS?
It’s messaging app which allows you to exchange
messages without having to pay for SMS.
Users can create groups, send each other unlimited
images, video and audio messages and etc.
Technical specifies-A customized version.
Developed for Third Generation IC
WhatsApp uses a customized version of the open standard XMMP.
Its communications protocol for message-oriented middleware based
XMPP is defined in an open standard and uses an
open systems approach of development and
application, by which anyone may implement an
XMPP service and interoperate with other
XML - XMPP is essentially a technology for
Instant Messaging - The messages are the most
important part of any instant messenger system
MD5 - It has been utilized in a wide variety of
cryptographic applications, and is also commonly
used to verify data integrity
The XMPP communications between clients and
servers are safely implemented mainly through
1. TLS protocol applied to the transport
layer protocol .
2. SASL layer applied to the Simple
Authentication and Security.
FEATURES OF WHATSAPP
Message delivery receipts
Call and video call
In the past year or two, there have been a lot of major
WhatsApp updates, like the addition of video calling, end-
to-end encryption, voicemail, tons of new emoji, Google
Drive backups and the end of the subscription fee. And
now, you can convert videos into GIFs, share them and
search for them on Giphy.
Whatsapp is a famous and popular messaging
application around the world using for personal
Allow easy messaging as text ,send a video, audio
and image to retrieve and allow user to search for a
particular record .
H storage of internal memory have large to store
the data retrieve. As size of data very large and
need special data structure for storing and indexing