This is my first app on the Mac App store, and my first Swift app. It was something to scratch my own itch. I wanted to be exposed to more art and knew that the best way was to have it right in front of me on the computer, so I collected public domain art and made an app to periodically display a random work as the wallpaper. So far my favorite artist discovered this way is Giovanni Battista Piranesi, for his etchings of Rome. My girlfriend describes the app as "Pandora for art." Once there are enough users, I have plans to roll out a collaborative filtering system. (Slope one-based? Tips there would be great)

I'm interested in hearing about the experience others have had with the Mac app store. I've been giving away promo codes, and that seems to have helped sales by word-of-mouth. Although the app appeared on the daily "Top Paid" and "Top Grossing" chart for its category, that happened with only low double-digit purchase counts. It seems there are fewer people using Mac app store than the iOS store.

Feedback is welcome, and I still have a few free codes left if anyone would like to try it without buying. I set the price point at $5 because it covers my costs (AWS mostly), it's less than an art museum admission, and it is about the same as a Starbucks coffee (hopefully within impulse range for many).