I can confirm that the “app store” loophole has been in effect as early as January of 2015. That’s when I first came upon it. I’m guessing that others have been able to use it even before then. As another commenter reported, the duration of “free wifi” has been less as of a few months ago. Typically now you’ll get…

I started using this trick in early 2015. I used it again a few months ago. 5-10 minutes is what I was getting as well. I can’t believe they haven’t fixed this “app store” loophole.