Should be instructional – Flag Quiz - a guessing game of the world’s flags Review

I usually play those games to refresh my knowledge. If I knew the flags I wouldn't play it obviously because there isn't an incentive. However since I am getting older and need refresher I would like to have more options to get clues. I can only review once, "like" once the rest I have to buy which I am not willing to do it since my income is limited.
Review by Ybmaral on Flag Quiz - a guessing game of the world’s flags.