Each "puzzle" is largely the same. Solution process is identical so this app is more mindless solving. The twin objectives, to solve swiftly in both time and moves, is good. But, mis-tap one hex, which is quite easy, and theres no undo or reverse direction. Depending upon which hex you mis-tapped, one, two, or five more taps to correct, which can ruin the "score" for fewest moves Certainly does not induce you to think differently or spacially reorienting or methodically other than the one method.