I do respect that. And if you find people paying for it then I say keep at it!
I definitely think it is a neat app, but I just didn't see the value proposition personally. Others probably do. I know the macOS software market is usually higher priced than iOS and others.
Thats just my reaction and I wanted to give my feedback.
As a side note: I'm trying to break into the iOS/macOS dev market, do you mind sharing if you make all of your income from indie development? And how long have you been at it?