Kik Messenger, commonly called Kik, is a freeware instant messaging mobile app from the Canadian company Kik Interactive, available free of charge on iOS and Android operating systems. It uses a smartphone's data plan or Wi-Fi to transmit and receive messages, photos, videos, sketches, mobile webpages, and other content after users register a username.

Kik is known for its features preserving users' anonymity, such as allowing users to register without providing a telephone number. However, the Kik application logs user IP addresses, which the company can use to determine location.

Kik was founded in 2009 by Christopher Best & Ted Livingston. The company is headquarted in Waterloo, Ontario, and has offices in New York, Toronto and Tel Aviv.

Kik is the best way to connect with friends, no matter where you meet them. But it’s also become so much more. As the only chat platform built especially for teens and as a clear leader in chatbots, Kik aims to become the central hub for everyday life for teens across the world as we grow.

Kik had more than 300 million registered users, as of May 2016. Over 40% of American youth use Kik to chat, browse and share with their friends, putting Kik in a unique position.  

Kik is backed by leading investors including Foundation Capital, RRE Ventures, Spark Capital, SV Angel, Tencent (maker of WeChat), Union Square Ventures, Valiant Capital Partners and others. The company has acquired Blynk, Relay & Rounds to date.

Kik was valued at over $1B in it's latest "ICO" fundraising event on Aug 29, 2017, they raised $100M during the event.