A free program for Android, by Calcutron Software Solutions.

In this one of a kind puzzle game, you will have to connect pieces of conveyors, sorters, and adders in order to build a machine. However, it won’t be as easy as you thought since you have to follow the correct pattern. 

When you have linked all the pieces together, there will be a test run. If you pass, then you move on to the next level. But if you have connected the wrong pieces together, then you will fail and you will have to try again.

The game can be played in portrait and landscape mode. It works on any android device.