|Initial release||October 19, 2010|
|Stable release||7.10.1 / Feb. 4, 2015|
|Operating system||iOS, Android, Windows Phone|
|Available in||English, French, German, Italian, Japanese, Korean, Brazilian Portuguese, Russian , Spanish, Traditional Chinese, Simplified Chinese, Swahili|
|Type||Instant Messaging Client, Web Browser|
Kik Messenger is an instant messaging application for mobile devices. The app is available on most iOS, Android, and Windows Phone operating systems free of charge. Kik Messenger is modeled after BlackBerry Messenger. Kik uses a smartphone's data plan or Wi-Fi to transmit and receive messages. Kik also allows users to share photos, sketches, mobile webpages, and other content. Kik Messenger requires users to register a username.
Founded in 2009, Kik Interactive is the work of a group of students from the University of Waterloo who wished to create new technologies to be used on mobile smartphones. Kik Messenger is the first app developed by Kik.
Kik Interactive released Kik Messenger on October 19, 2010. Within 15 days, Kik Messenger reached one million user registrations, with Twitter being credited as a catalyst for the new application's popularity.
On November 24, 2010, Research In Motion removed Kik Messenger from BlackBerry App World and limited the functionality of the software for its users. It also sued the company for copyright infringement. In October 2013, Blackberry and Kik settled the lawsuit, with the terms undisclosed.
As of May 2014, there are 120 million users registered.
On October 1, 2014, Kik Messenger, Sony Records and IPG Media Lab were awarded with The Smarties, by the Mobile Marketing Association, because of the first global music marketing campaign with One Direction.
In November 2014, Kik Messenger announced a $38.3 million Series C funding round and its first acquisition, buying GIF Messenger "Relay". Its newest funding is from Valiant Capital Partners, and includes new investors Millennium Technology Value Partners and SV Angel.
During early 2015, Ted Livingston told news agencies that Kik plans to reduce the amount of child pornography on Kik, by adopting a service that can search for exploitative images and report them to the relevant authorities. The proposed child exploitation mitigation tool will only remove and scan for known child pornography that exists in an international database. The new tools will not be able to screen messages from pedophiles who may be engaging in child grooming. 
On November 4, 2014, Kik Messenger scored 1 out of 7 points on the Electronic Frontier Foundation's secure messaging scorecard. It received a point for encryption during transit. It lost points because communications are not encrypted with a key the provider does not have access to, users cannot verify contacts' identities, past messages are not secure if the encryption keys are stolen, the code is not open to independent review, the security design is not properly documented, and there has not been a recent independent code audit.
Child exploitation is prominent on Kik Messenger, and during 2014 a pedophile told The Trentonian newspaper: “I could go on it now and probably within 20 minutes have videos, pictures, everything else in between off the app because I know they’re both still active. That’s where all the child porn is coming off of.” Similarly, in 2015 another pedophile stated: “The first thing that I thought was, ‘Wow! I can be whoever I want to be. I can get anybody I want. I can achieve my sexual glorification through this app".
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