Download KIK messenger for iPhone, iPad, Android, Windows Phone... Have you heard about KIK messenger app and you are wondering what it is all about? Many Instagram users list their KIK usersnames in their bios. This is a big trend that is clearly visible on many popular accounts. KIK is a stylish, cross-platform Smartphone app used for instant messaging of your friends. Hence, you can send and receive unlimited number of messages with KIK to and from anyone having a KIK account.