from web site
Some New Features — Type C Fanuc cutter compensation standard in Mach4. LazyCam Pro License LazyCam is a beta-release importer included with Mach3. What's a software toolchain anyhow?
I am totally happy with this setup. You don't have to buy the Industrial version if you're making money. Mach3 software relied on the hardware plug-in software and complex buffering schemes to ensure accuracy and coordinated motion.
Mach4-Hobby CNC machine Controller Software License*** - The built in screen designer facilitates creating new layouts, but I'm unable to do totally new stuff.