By signing up with username instead of a phone number you don’t automatically share personal information with others. Friends can only see your display name, username and profile picture. They cannot see your email address, birthday or phone number. However it is important to note that if you are added into a group everyone in that group can see your username even if they are not your friends.
We recommend Common Sense Media for further information about Kik. Access free
parental control how-to guides to get up to speed on how to set the right level of
protection to give them a fun and safe experience.