Former Math 24 Champ
I played in Math 24 Competitions in grade school and have basically memorized every combo. The app is great and brings back awesome memories but lacks some UI. Theres no menu, no directions, and a lack of combinations. There should at least be a leader board so youre not just competing against your personal score. Also, they should consider bringing in other versions of the game (double digits, fractions, integers, etc.) Either way the app is a great mental exercise and I thoroughly enjoy it, despite the lack of difficulty.
VITAL0NE about
24 Game – Math Card Puzzle