There is a more detailed page for System Requirements.
A Note about Inklingo on Mac
Monkey and I are not Mac users (yet) and that means we will only be able to provide limited support. For that reason, it is a good idea to join the Inklingo IO Group, where there are friendly Mac users who may be able to help if you have questions about downloading, activating or printing on Mac.
There are detailed instructions for using Inklingo with Adobe Reader (free) on Mac. (Mac Preview does not recognize the copy protection, so it will allow you to open Inklingo PDFs. The solution is to download the free Adobe Reader.)
See more FAQ about Adobe Reader, below.