For another thought on how easy this could suffer from scope creep, iOS does (did?) store whole-app screen captures as PNGs for use on the app switcher, etc. I

For another thought on how easy this could suffer from scope creep, iOS does (did?) store whole-app screen captures as PNGs for use on the app switcher, etc. If this is already scanning photo libraries locally, just add the temp dir for app screen captures and they're effectively monitoring your screen too.