Mach3 is described as 'Is very popular among the Hobby CNC community. Artsoft produces Mach3 software and has been around for some time. This software can be used as a fully functional CNC control or used as a CNC simulator for training, learning or testing CNC programs' and is an app in the system & hardware category. There are more than 10 alternatives to Mach3 for a variety of platforms, including Windows, Linux, Mac, Web-based and Raspberry Pi apps. The best Mach3 alternative is PlanetCNC. It's not free, so if you're looking for a free alternative, you could try LinuxCNC or Blender CAM. Other great apps like Mach3 are Mastercam, UCCNC, PyCAM and EdingCNC.
Cam software can't control a CNC machine.