How about adding an additional, voluntary section with apps that are bound by the same standards and requirements, rather than segmented by audience or purpose?
I would hope that an adult would have the maturity to make the decision not to use ad supported apps if they didn't want to.
Adults can't really make that decision for analytics though. Most iOS users that don't use facebook have no idea that facebook has all of their data including their location because third party apps are using facebook's analytics SDK, for example.