• Steps to manage apps from your iPhone X Storage menu:
• Go to [Device] Storage > Settings > General. You may notice a list of storage-optimization suggestions, followed by a list of installed apps and the amount of storage each one consumes. To learn more about an app's storage, tap its name. It's possible that cached and temporary data aren't counted as usage.
• You can do the following in the detailed view: Offloading an app frees up storage space while keeping the app's documents and data. Delete the app to get rid of it and all of its data. You may be able to erase part of the app's documents and data, depending on the app.
• A Storage Almost Full alert may appear if your device is nearly full and you are unable to clear up space. If you get this message, check your storage recommendations or offload some less-used items, such as videos and apps.

Read More: How to move files and data from Android device to your iPhone X?