A free app for Android, by Alberto Serez.

Color Saw 3D is a challenging puzzle game where you need to cut the blocks into the right shapes to advance in the game. Each level has a shape at the top of the screen to help you get a clue of what to do next. It is very simple and easy to play. The controls are super simple and intuitive. You can move the blocks by dragging them. You need to be very careful not to move them too close to the saws, or they will get cut and you will lose a life.

As you progress in the game, you will unlock more and more saws.