iphone frees up storage space method:
Find out who's taking up storage space
Before we can delete the stored information at random, we need to find out which application occupies the most space. Click "Settings"-> "General"-> "storage and icloud use" and select Manage storage under Storage options.
The page displays the amount of storage that has been consumed, the available storage capacity, and the storage capacity used by each section.
Deleting and reloading applications
At first glance this may not be commonsense, but deleting an application and then reinstalling it frees up hundreds of MB of storage because, in addition to the application itself, the iphone temporarily stores cached videos, documents, and data. Typically, these files are periodically purged, but there will always be parts of the file that will be retained, so deleting and then reinstalling the application clears the cached file.
However, this approach is not suitable for all applications, especially for games that store data on this computer rather than icloud or other cloud storage services. If you do not want to delete the application, part of the application, in the Settings menu has the ability to clear the cache.
However, we should not hesitate to delete the application of the most recent use of time. It is easy to download from the App Store even if you need to use it later.
Uninstall videos and photos
People will certainly use the iphone unconsciously to take pictures and videos, the problem is that these photos and videos will quickly occupy a lot of storage space, you can consider to import them to the computer or stored in the cloud, and then you can delete them on the iphone.
Clear Safari Cache
When users surf the Internet through the iOS Safari browser, images and Web site data remain in cached files, consuming large amounts of storage space. If the reader wants to add a few MB of available storage space for the iphone, click "Set"-> "Safari"-> "Erase history and site data." In addition, readers can keep historical data and clear other data in Safari: Click on "Advanced"-> "website data" and click "Clear All Site data".