Parents:
Go to "Settings" → "About me". Here you can change your name, email and phone number.
Do you no longer have access to your login details? Contact us at [email protected], and our customer support team will be happy to help you!
Children:
If you're a parent and want to change your children's log in information, go to "Settings" → "My Children" → select the child you want to update → "General settings". Here you can change your child's name, email and phone number.
If you're logged in to a child's account, press the wrench icon in the top-right corner of the main menu. Then tap "About me"