Third-party apps will also have locally stored files that you can remove for more storage space. To find these files, check the particular app for any “Trash” or “Recently Deleted” folders or features. Afterward, you may need to follow app-specific instructions to delete them completely. In some cases, third-party apps will also have a specific folder in your Files app as well, which we’ve discussed how to manage earlier in this article.
If you want specific instructions on how to delete files permanently on your iPhone’s third-party apps, especially unnecessary files, you can consult the FAQ section, forums, or other official app channels owned by the app’s specific developer. As a last resort, you can delete the app entirely and download it again to remove all of those unnecessary cache files.
Aside from the specific Files app folders, you might also want to consider checking your Downloads folder. Typically, this is where files you downloaded online via the browser can appear, such as PDFs, images, and so on. Although there is no straightforward way to delete all the “trash” files on your iPhone, you can follow the steps above to get more space back on your device. And if you’re still struggling with low storage space, there are plenty of tricks you can follow to free up space on your iPhone.