PartyCAD is Windows software and is meant for use on Windows desktop computers. However, if you are technically adventurous...
I was recently at a MATRA convention where Andrew Metzger of Party Line Tent Rental amazed me by running PartyCAD 12 on his IPad. To make it work, Andrew first installed LogMeIn on the desktop in his office and then used LogMeIn Ignition on his IPad to remotely access his computer. After that, all he had to do was start PartyCAD and begin. It was curious to see PartyCAD appear on the IPad screen and to watch as he used his fingers to manipulate a design. I can't say it was perfect, but it certainly was interesting. The program was speedy enough, but it did seem that selecting program buttons was a bit tricky.
My understanding is that LogMeIn is free and LogMeIn Ignition is available from the IPad app store for a donation of $100. It seems to me you could do the same trick (and it might be cheaper) using GoToMyPC, TeamViewer or any other remote access software that includes an app for use from your remote device.
To run PartyCAD on your Mac you will need some extra software... the Windows operating system and some enabling software. I have no first hand experience with the process, but based upon customer reports, the most common way of getting PartyCAD working on a Mac is to use Parallels Desktop for Mac. The total cost for the Windows operating system and the Parallels software will come to about $250, to which you would need to add the cost of the PartyCAD software. You will probably need some expertise with computers to get things installed and working smoothly.
To run PartyCAD on your Linux system you will need some extra software... the Windows operating system and some enabling software. I have no experience with the process, but looking on the Internet, I would guess the best way to get PartyCAD working on a Linux based system would be to use Wine. Wine is free, but you will have to buy a copy of the Windows operating system, so the cost of allowing Windows programs to run on your Linux machine will be about $200, to which you need to add the cost of the PartyCAD software. Also, you will need some expertise with Linux to get things installed and working smoothly.