Instructions in this article apply to iOS 12 and iOS 11.
Apps also require preferences, saved files, and other data.
you might only tell how much space those additional files need by checking on your unit.
Lifewire
Older versions of iOS have aStorage & iCloud Usagesetting.
TheiPhone Storagescreen displays an overview of the storage used and available on the gear.
Beneath it is a list of installed apps, starting with the ones that use the most data.
Lifewire
Tap an app to see detailed information.
For example, in a podcast app, this is the combined size of all downloaded episodes.
On older versions of iOS, tapManage Storageto see this list.
TapDelete Appto remove the app and its data.
You’ll create more space without losing the content created with the app.
you’re free to alwaysre-download appsfrom your Apple account, but you may lose your saved data.
you might still use iTunes to get an iPhone app’s size.
As of iTunes 12.7, apps are no longer part of iTunes.
That means that these steps aren’t possible anymore.
But, if you have an earlier version of iTunes, they still work.
Select theAppsmenu in the upper-left corner.
A list of theapps you downloadedfrom the App Store or installed displays.
Click theFiletab and look for theSizefield to see how much space that app requires.
