I'm actually glad to see editorializing disallowed in app titles. If everybody did it, the store would be a mess. I mean, it's already a mess, but even more so.
It should be illegal to advertise you're not doing something that is illegal in the first place if the intent is to imply others are in fact doing it.
Apple does a better job of displaying this information than Google. Sometimes I check what IAP are available on the iOS variant of an app I'm interested in, just to get a better idea.