Operating System: Idiogrid is only available for the Windows operating system.  You can run it on a Mac, however, using emulation software such as Winebottler. Here a video showing how to run OOM on a Mac, but if you follow the steps, you should be able to run Idiogrid as well.

Minimum System Requirements : Windows software and 9 Megabytes of free disk space. Performance for large grids (e.g., 100 elements and 100 constructs) may be particularly slow with very old computers. For typical sized grids (e.g., 16 elements and 16 constructs), performance will not be hindered at all. Idiogrid will also run under versions as old as Windows XP.