Will not work on my new Mac Mini, Apple won’t refund?

I had big hopes for this app, but it simply will not work on my Mac Mini 8GB… All my Google accounts (including Google Play Music, Movies, Books) work fine with the Google-developed apps on this device, but not this app. I just want a refund. Why does Apple do UX so well in everything but refunding our money?

djjonbates about Gear Music Player