I had an experience a couple of days ago with exactly this type of thing (I downloaded the comment form, and I'll send it in).
In this case, it nearly cost the app maker a sale (I doubt they'll go out of business on the loss of my sale. As it happened, they didn't actually lose the sale).
I wanted to ID some of the plants in my yard, looking for native vs. introduced, so I downloaded a couple of apps. One was a good one, but was really a "crowdsourced" one. I had to sign up for an account, and participate in a community. Not a showstopper; but not really what I was looking for. I'm into instant gratification.
The other one was an ML-type app that would analyze photos in realtime.
When I started it up, it immediately wanted me to get the in-app purchase to the "premium" version, which is actually a yearly subscription.
The dark pattern, was how they did that. They obfuscated and deprecated the navigation to the free variant. It was almost impossible to see the buttons behind the premium banner, and it was difficult to actually touch them.
At first, I immediately shitcanned the app, as I assumed that you were required to get a subscription before using it at all.
I did a bit more research, and everyone was saying it was a decent app, and that it could be used without the subscription.
So I tried it again. This time, I squinted, and found the links.
It worked really well. I'll be getting the subscription.
The moral of the story is that they were so big on a dark pattern, trying to force new users to start paying immediately, that they actually drive off sales. The app works well. They don't need to hide it. That's what apps that suck do. This app does not suck.