1. First turn on the phone and find the "Settings" icon, as shown in the figure.
2. In the settings, drop down and find "General", and click to enter, as shown in the figure.
3. Click "iPhone Storage Space" in GM to enter, as shown in the figure.
4. In the iPhone storage interface, you can see the storage space used by each software, as shown in the figure.
Here is an example, such as clicking on a software that takes up a lot of memory. You can choose "Delete Application" or "Uninstall Application", and the cache will be cleared. If you still need software, go to Apple Mall to download it.