Earlier quoted context omitted.
What makes it a (crystal clear IMO) dark pattern is that the purportedly "free" feature set gives the user no value whatsoever. It only exists to induce sales. Inducing a high-bar commit (the purchase) by first securing a low-bar commit (install + scan) is an old trick. Don't fall for it.
I think this is an outrageous abuse of the term “dark pattern” from people who want to be angry more than they want to think. The website mentions repeatedly what the pricing model is, and the operation is “we show you exactly how much value you would get from paying, and then you can decide whether it’s worth it to you.” That’s as honest and plain as business can get: Plenty of people don’t have many/any files which…
Here, the first mention of any kind of cost to this software is ~1/8th of the way down the page when you're met with Q: How do I pay for Hyperspace? which litteraly states that it's a free download that doesn't do anything unless you pay them, meaning that it is not free in any sense of the term.