[@Mr.Dave] I’m replying to myself after checking out the Mag2go web page. I found this on the main page:
Publish your magazine app into your Apple iTunes Connect account and Google Play account.
…and this on the FAQ page:
2. Register your device in Apple Developer Account.
So yes, you need to give Apple some money to be able to use this program to create for iPhones. That rules me out pretty quickly. Will still install the program in case I ever become an Apple Developer, it looks like a nice program to have!