CodaKid courses are designed for one student per subscription. Each course license will only save one child's progress, and will not permit concurrent log-ins. As we provide teacher support for each course and this cost multiplies with add-on students, this set up helps our startup make ends meet! If you would like both kids to take the course, then you should purchase our family subscription which allows up to three students on a single account.
If you need more than three students, you will need to make a second account.