To register for the Kik service, a user must enter a first and last name, e-mail address, and birth date (which, as of February 2016, must show that the user is at least 13 years old As of February 2016, Kik's guide for law enforcement said that the company cannot locate user accounts based on first and last name, e-mail address and/or birth date; the exact username is required to locate a particular account.
The guide further said that the company does not have access to content or "historical user data" such as photographs, videos, and the text of conversations, and that photographs and videos are automatically deleted shortly after they are sent.
Kik Messenger has drawn controversy due to its reported involvement in a number of incidents of child exploitation.
On August 16, 2015, Kik received a million investment from Chinese Internet giant Tencent, the parent company of the popular Chinese messaging service We Chat.
On November 4, 2014, Kik scored 1 out of 7 points on the Electronic Frontier Foundation's secure messaging scorecard.
Kik received a point for encryption during transit but lost points because communications are not encrypted with a key to which the provider does not have access, 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 had not been a recent independent security audit.
The investment earned the company a billion dollar valuation.
In November 2017, Kik Messenger was silently removed from the Windows Store.
In November 2014, Kik announced a $38.3 million Series C funding round and its first acquisition, buying GIF Messenger "Relay".