It's not just initial installation. I have not pursued a license lately but these kinds of products cost money for every running instance. Institutions often have license servers on premises that allow a fixed number of people to use the stuff at once. If you use a SDK to build a program with it, that's got a separate license. If you need it for a real product, we are generally talking like thousands of dollars per developer per year in perpetuity, plus god knows whatever you use for SaaS. You might have to negotiate a price for your use case.