Needs to allow gradual learning

My child has used Stack the States and really enjoys it. Unfortunately, Stack the Countries is overwhelming because the user/parent cannot limit the countries so the child can learn a few at a time. The user should be able to start with a smaller group of countries like the G-20, or defined by largest population or GDP. With such a change this app would be as good as Stack the States.

Ian Corcovado about Stack the Countries®