Magic Square is a free android app developed using MIT App Inventor 2. The application goal is to give a simple way to make 3×3, 4×4 and 5×5 magic squares. In the first screen you can find 3 buttons: 3×3, 4×4 and 5×5. Clicking them you will go in a new screen where you can try to make your 3×3 or 4×4 or 5×5 magic square. Only if you are able to make a true magic square you can listen wonderful! it is a magic square, else you can retry.
Pay attention: to make a Magic Square is not a simple game, it is a complex math problem!
A new button HELP to have Magic Square information also via Wikipedia