Your Kik username is your identity while using the app. It’s completely unique to you and your Kik account alone, and it’s how we connect you with your friends on Kik.
As a result of this, your Kik username can't ever be changed once your account has been registered so please choose wisely! However, you do have the option to change your display name.
If you'd like a new Kik username, you will need to register a brand new account with a different email address.