If you are upset about your full iPhone storage and want to delete junk files on iPhone, this presentation will show you 5 way to easily clean up and free up your iPhone, which may you.

1. Delete iPhone Junk Files

2. Way 1: Delete Junk Files on iPhone by Clearing Caches
Settings > Safari > Clear History and Website Data.

3. Way 2: Remove Junk Files from iPhone by Reinstalling App
Step 1: Settings > General > iPhone Storage > Tap the app with huge
unnecessary data > Tap Delete App.
Step 2: Enter App Store, search and install the app again.

4. Way 3: Clean Junk Files on iPhone by Restarting iPhone
Step 1: Press the side button(/ top button) until the power off slider appears.
(For iPhone X, 11, 12, or 13 users: Press the volume button and the side
button together). Then drag the slider to turn off.
Step 2: Press the side button(/ top button) on the right until you see the
Apple logo to turn on.

5. Way 4: Clear Junk Files on iPhone by resetting iPhone
Settings > General > Transfer or Reset iPhone> Reset All Contents and Settings.
Then you can get a new device and just reinstall useful app and restore important
files on phone.

6. As a powerful cleaner tool, iSumsoft iDevice Cleaner is designed for iPhone
users to remove all kinds of junk files from iPhone. With iSumsoft iDevice
Cleaner, you can clean your junk files easier and save your time on iPhone
cleanup.
 Fast scan for junk files
 Easy cleanup for large files
 Safe deletion for unknown files
 Convenient cleanup for unused apps
To delete junk files on iPhone, please install this software on PC and plug
iPhone into PC with its supplied lightning cable.
Way 5: Get Rid of Junk Files on iPhone with a Cleaner App

7. Step 1: Go to Fast Cleanup

8. Step 2: Click on Scan

9. Step 3: One-click on Clean

10. Step 4: Export files before cleanup

11. THANKS
To make it more clearly,
here is a video for you.
https://youtu.be/jDYQueMWJvc