Confusing Upgrades

Both my kids (2 and 3.5) love this game. Im a little skeptical about its actual value for "brain training", but at least it is more interactive than watching videos. The differences between the various in app upgrade options are not explained clearly anywhere in the app or on the website. Specifically, both the Lifetime Access and the Family Lifetime Access appear to provide access for only one child even though the Family Access is $30 more. If it does not allow multiple users, what IS the reason for the extra cost?

Knight_Pilot about Fit Brains for Kids: Sparky's Adventures