Generally, iPhone apps appear on an iPad at iPhone size unless you enlarge it, and then have the option to shrink back to iPhone size by touching this control:

Somehow, I got both Plus42 and Free42 in the enlarged mode, but cannot figure out how to switch back to the smaller, which I prefer, and don't see that control. Tried changing skins, uninstalling/reinstalling but no luck.
Is there a way to get back to the iPhone size on an iPad? (Obviously not a big problem)