Earlier quoted context omitted.
How are you marketing the product?
So far: - Get listed in any/every saas (esp b2b) directory I can find (haven't done producthunt yet, though). - Send out cold emails (not a lot so far). I'd start making cold phone calls if I wasn't sitting at a day job during business hours every weekday. I could try postcards..? - Post to online formus - kind of like I'm doing here :) I'm really trying to avoid resorting to PPC ads, but it might be time to do that.…
I think paid ads is a pretty good approach to validate the product and copy, even if it's not a viable strategy in the long run.
Making it free for academic use makes sense in more than that sense. If you're lucky you might get a .edu backlink from it, which is valuable for seo.