There is a way to delete the apps you don't use often without losing the data associated with them. You can do this by offloading, which is basically uninstalling an app to free up storage space on your iPhone, without deleting the data and information from it. To offload an app, follow these steps:Go to SettingsGo to GeneralSelect iPhone StorageChoose the app to offloadTap on Offload AppYou can also have your iPhone automatically offload unused apps when it's running low on storage space.