Is there any way I can diagnose this? As far as I can tell Angeldust is actually available on both the Mac and iTunes App Store. Any feedback or advice is welcome here.
I originally followed your link on your website, which opened App Store and gave me that notice about it not being available in this country.
However, now I just opened App Store, searched for "angeldust", and bought it for less than 5€... so clearly it is available.
So it has something to do with the path a user takes from the link on your website thru the Apple dialog that asks where to open the link [App Store], etc.
Thanks so much for taking the time to follow up. I think you are right on the money with my website-link being stale or outdated. I've contacted Apple to diagnose and fix the issue. If you—or another hacker—knows a good way to link to apps on the iTunes App Store from a website I'd love to hear it. Apple's link builder seems to tie in a regional preference which might not match the user's actual region.