How to offload an app within iOS

iOS version 11 includes an option to off-load an app to save space but allows to retain parameters.  This feature deletes the app but not the data created by the app.

To offload an app, go to Settings > General > iPhone Storage (or iPad Storage).  Enable next to Offload Unused Apps.

To offload an individual app, tap the app on the list lower on the same page. On the app’s page, tap the “Offload App” option.

To disable the Offload App feature, disable the option under iTunes & App Store.