You could have downloaded FamousCube 1.0.1 for Mac from our application library for free. The program lies within Games, more precisely Arcade. This Mac application was originally produced by Róbert László Páli.
From the developer:
FamousCube is the virtual version of the puzzle designed by Ernő Rubik. Freely play with it or measure the time and moves you need to solve it. You can rotate with the arrow icons or with a logical set of keys for fast gameplay. The game supports four cube sizes.
You may want to check out more software for Mac, such as FamousCube Mini, which might be related to FamousCube.