How to Reclaim Storage Space on Your iPhone by Clearing System Data

Deleting cached files and app data can free up gigabytes of storage on your device.

Published on Feb. 26, 2026

If you've noticed your iPhone's 'Other' or 'System Data' category taking up a significant amount of storage space, there are steps you can take to reduce it. System Data includes cached files, temporary downloads, system logs, and other behind-the-scenes files iOS creates while you use your phone. While you can't directly delete System Data, you can reduce it by deleting apps with large amounts of stored data and reinstalling them to clear the cached information.

Why it matters

As our phones accumulate more photos, videos, and apps over time, managing storage space becomes increasingly important. Clearing out unnecessary System Data can free up valuable storage for the content and apps you actually use, without having to delete important files or apps.

The details

To reduce System Data on your iPhone, go to Settings > General > iPhone Storage. You'll see a breakdown of what's using your storage, including the System Data category. Tap on individual apps to see how much data they're storing, and consider deleting and reinstalling apps that are taking up a lot of space. This will remove the cached data without losing your account information or content. On Android devices, you can often clear cached data directly within each app's storage settings.

  • The author reclaimed more than 10 gigabytes of storage on their phone in about 15 minutes.

The players

iPhone

Apple's flagship smartphone line that runs the iOS operating system.

Android

The dominant mobile operating system developed by Google, used by a variety of smartphone manufacturers.

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The takeaway

Regularly checking and clearing out your iPhone's System Data can be an effective way to reclaim valuable storage space without having to delete important files or apps. This simple process can free up gigabytes of storage for more photos, videos, and other content.