I know I am very late to this party, but the stupidest thing about this for me is that as a EU resident, if I want to download Delta (which is a free app), I have to install AltStore and pay Eur. 1.50 + VAT a year, which is definitely something I don’t agree with in principle. And it’s all Apple’s fault to begin with, regardless of the fact that the EU forced them to allow third-party app stores, because this is to cover Apple’s Core Technology Fee.
I’m just going to wait until this stupidity gets sorted out and I can get it via Apple’s own app store–there are literally dozens of Nintendo emulators out there still, and I suspect Delta will be outclassed by all the Android ports that are likely to pop up.