There are two ways to add another child:
Parent Dashboard > Click the plus icon next to your child.
Click Account details > Add another child under Children Details.
In both ways, you can:
Get an additional license.
Connect your child's Matific school account.
Get an additional license
Click Get additional license.
Follow the standard signup process.
Connect your child's Matific school account
Click Connect Child's Account.
Enter your child's login details > Click Add Child.
Click Connect Account.