How to clear System Data on iPhone

iPhone insufficient storage space? System data caused trouble! This article will explore in-depth reasons and solutions for iPhone system data occupancy, helping you to easily free up storage space.

What is iPhone system data?

Prior to iOS 15, system data was called "other", but its nature has not changed. System data contains caches, logs and other resources generated during the system operation. Simply put, it contains all kinds of miscellaneous data and is difficult to manage.

The culprit of occupying space	How to free up space
Repeat photos	Use CleanMy® Phone to find and delete automatically.
Old news	Delete: Settings > Information > Retain Information > 1 year or 30 days.
Large accessories	View and delete: Settings > General > Storage > Information.
Application Cache	Clear cache: Settings apps > General > iPhone storage space.
Unused app	View and delete: Settings > General > iPhone Storage.
Browser History	Clear: Settings > Safari > Advanced > Website Data > Delete All Website Data
Local iPhone backup	Use AnyTrans for iOS to backup to your Mac and then delete the local backup.

iPhone storage space is full? CleanMy® Phone intelligent algorithm easily finds and deletes duplicate files. Download Setapp to experience it now!

How to view the data storage space of iPhone system?

The system data size will change with usage time. Usually it takes up 5 to 20GB, and if it exceeds 20GB, it needs to be cleaned.

View method:

1. Open the Settings app.
2. Click "General" > "iPhone Storage".
3. View a light grey bar chart representing system data (iOS 15 and above) or "Other Storage" (iOS 14 and below).

Unfortunately, the system only displays charts, does not display specific GBs, and lacks detailed segmentation. You can also view it on your Mac: Connect your iPhone to your Mac, launch Finder or iTunes, select your device, and view the storage bar at the bottom of the screen.

It is recommended to use the Usage app to monitor iPhone disk, memory, battery and network usage.

Why does iPhone system data take up so much space?

Reasons for system data to grow:

• System files: Files used by iOS do not belong to specific applications. For example, new Siri voice or font.
• Temporary files: They will be deleted when iOS is no longer needed.
• Log and website cache: Includes website login information, auto-filling URLs, and pre-loading websites.
• Streaming cache: A cache saved to ensure smooth playback.

How to clear iPhone system data?

There is no way to completely clear system data, but it can be reduced to 1-2GB.

Method 1: Delete the message history

Setting up automatic deletion messages: Settings > Messages > Retain information > Select 1 year or 30 days. Manually deleting old messages can also reduce system data. Similarly, cleaning up unnecessary memos and voice memos can help.

An effective method:

1. Enable Airplane Mode and turn off Bluetooth and Wi-Fi.
2. Set iPhone date to one year later.
3. Wait 60 seconds.
4. Check the usage of system data.
5. Set the date to three months later.
6. Wait 60 seconds.
7. Check the usage of system data.
8. Set date to automatic.
9. Turn off airplane mode.

Method 2: Delete large attachments

Settings > General > iPhone Storage > Information, view and delete large attachments.

Method 3: Clear application cache and uninstall unused applications

Settings > General > iPhone Storage, select apps, clear cache or delete apps and reinstall. Uninstall unused apps: Settings > General > iPhone storage, enable Uninstall unused apps.

Turning off background application refresh and location services can also reduce system data.

Method 4: Clear browser history

Regularly clear Safari or Chrome browsing history and website data.

Method 5: Delete the local backup

Settings > [Your Name] > iCloud > Manage Storage > Backup, select the backup you want to delete, click "Delete Backup" > "Close and Delete". Use AnyTrans for iOS to backup to your Mac and then delete the local backup.

Method 6: Restore factory settings

After backing up the data, restore the factory settings.

After cleaning up the system data, free up more space!

Use CleanMy® Phone to remove duplicates and spam photos and videos. Setapp offers a free 7-day trial.

Frequently Asked Questions

• Why is my iPhone system so high? System data includes various caches, logs, updates, Siri voice, etc.
• Can I delete system data on my iPhone? It cannot be deleted directly, but it can clear a specific file.
• Why is my iPhone storage full, even if I have iCloud? By default, files saved to iCloud will also be saved locally.
• What happens when iPhone storage is full? The device is slower and the response is slower and the application may not be installed or updated.

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