Genius tip!
Deleting an app from its summary page in Settings > General > iPhone/iPad Storage is equivalent to holding a finger on its Home screen icon till it jiggles, then tapping the X at its top left corner. This removes all traces of the app from your phone, but it doesn’t remove its docs or data from iCloud.
iOS’s space-saving recommendations adjust items found elsewhere in Settings, saving you digging around. The one to offload unused apps turns on a switch in Settings > iTunes & App Store, for example.