Otto,
I run JeppView on my iMac & MacBook Air, as well as on two iPads. The licence allows 4 installations, and I'm using all 4.
On the Macs, I run Parallels, and within it run a virtual windows PC. At the risk of telling you how to suck eggs, Parallels allows one to create a virtual PC, using any one of a number of operating systems, all using the Mac hardware, hence it's called a Virtual Machine. I only run windows for JeppView, a particular Excel spreadsheet which uses Macros, and Hema Maps.
I'd reckon if you had an iPad or two, you could avoid loading JeppView onto a virtual PC, by using JeppFD or JeppTC on the iPad, as all the info is there, you can print from the Apps if needed. The only time I open JeppView on the virtual PCs is to run the updates.