Excellent
Really helped me learn the capitals quickly.
I don't understand the number ratings that are given after each game. Three boxes with white, green, and orange numbers - no idea what they mean. If anyone finds out, I'd love to know.Developer Response
Thank you for your feedback. I'm happy that you like the app. The meaning of the colors: white - number of cards not seen yet; orange - number of cards to be repeated; green - number of memorized cards. I'll try to make that easier to understand in the app.