The software is only included with the sale of some hardware, as there is a "demo" package listed on their website. A sales engineer by the name of Luis Melcher would be the one to contact through their customer care department. What is not shown on the website, is the rack mounted back room equipment to interface with radios, Intelligence Radio Interface Modules (iRIM) devices, Cisco or Juniper switches, and other related gear. The MAX IQ system is a lighter version of MAX dispatch, but I have no experience with that product line.
From my experience with Zetron MAX products, they work well with APX Motorola radios, XTL with O5 control head radios, and some newer Kenwood, as they are part of the JVC/Kenwood Group along with EF Johnson, and controlling interest in Tait. However, true interoperability is still a pipe dream as many engineers are transplants from Microsoft, and think everything can be fixed through a software upgrade. There have been software updates almost every two months, and sometimes they improve function and other times something else is missed, broken, or new issue come from installing the update.
Sort of like Motorola, with their many software issues with 7.18, although, UEM can find most of the issues. My opinion, if your radio network is Motorola, buy Motorola, if Harris buy Harris, and if Kenwood buy Zetron.