Even if it's not a root exploit, though, there's no cause for celebration. Handy Light shows that the App Store process can sneak major, prohibited functionalit

Even if it's not a root exploit, though, there's no cause for celebration. Handy Light shows that the App Store process can sneak major, prohibited functionality onto users' devices in the guise of a clearly useless and trivial app. Any competent iOS developer should be able to think of a handful of ways to sneak past Apple's approval process if they felt like it and had sufficient reason to do so.