gCADPlus landscape software runs happily on Mac computers provided that the processor is Intel-based* and some form of Windows emulator application such as CrossOver, Parallels, etc. is running. gCADPlus also runs under Linux distributions.
Tip: Most recent Mac computers (purchased post-2006) are Intel-based. Apple have announced that they are using a new processor chip called M1. Preliminary testing shows that gCADPlus runs well on Macs using this chip.
We use CrossOver on our iMac as the Windows emulator, but we have many gCADPlus designers using other emulators/environments such as Parallels and/or Fusion.