How to Clear Cache on an iPhone in 2026: Quick Step-by-Step
The primary method for clearing cache on an iPhone hasn’t changed dramatically, but iOS 20 introduces a dedicated tool to handle the system cache (Stored System Data) that was previously invisible. Follow these steps to free up gigabytes of space without deleting your photos or messages.
Step 1: Clear Safari Cache (The Most Common Fix)
Safari stores website data, images, and cookies locally to speed up loading times. Over months, this can balloon to over 1 GB.
- Open Settings > Apps > Safari.
- Scroll down and tap Clear History and Website Data.
- New in iOS 20: You now see a sub-option: Partial Clear. Tap this to remove only cached images and scripts while keeping your login sessions (recommended for users who do not want to re-enter passwords).
- For a full wipe, tap Clear All Data > confirm.
- Pro tip: If you use Safari heavily, enable Automatically Clear After 7 Days in the same menu. This prevents cache from growing out of control.
Step 2: Clear System Cache (Stored System Data)
Starting with iOS 20, Apple finally allows users to manually clear the System Data cache (previously only accessible via a full restore).
- Go to Settings > General > iPhone Storage.
- Look at the bar graph immediately under the device name. You will see a grey section labeled System Data.
- Tap on the System Data bar entry (not the list of apps below).
- Tap Clear System Cache.
- What happens: iOS 20 will remove temporary files, software update remnants, log files, and cached app frameworks. This usually frees 2–5 GB instantly.
- Wait 30 seconds for the process to finish. Your phone will remain fully functional.
Step 3: Clear Individual App Caches (Third-Party Apps)
Many apps (Instagram, TikTok, Chrome, Spotify) store their own cache separately from the system. The method depends on the app.
For Google Chrome (Most Independent Browser):
- Open Chrome > tap the three dots at the bottom > Settings.
- Tap Privacy and Security > Clear Browsing Data.
- Select Cached Images and Files (leave cookies if you want to keep logins) > tap Clear.
- Note: Chrome on iPhone cannot clear cache via iPhone Settings; you must do it inside the app.
For Social Media Apps (Instagram, TikTok, X/Twitter):
- These apps have a Reset Cache option buried in their settings. Open the app > Profile > Settings (gear icon) > Account > Usage > Clear Cache.
- If you cannot find the option, the only method is to Offload and Reinstall (see Step 4).
For Streaming Apps (Spotify, Netflix, YouTube Music):
- Go to the app’s Settings > Storage > Delete Cache.
- For Spotify specifically: Settings > Storage > Clear Cache.
Step 4: For Stubborn Cache – Offload the App (Without Deleting Data)
If an app’s cache is not clearing or the option is missing, use the Offload App feature introduced in iOS 11 and refined in iOS 20. This removes the app’s executable and cache files but keeps all your documents and data (login info, drafts, game saves).
- Settings > General > iPhone Storage.
- Tap the app that is using excessive storage.
- Tap Offload App (not “Delete App”). The icon will grey out.
- After the offload completes, tap Reinstall App. The app will download fresh from the App Store with zero cache.
- Time-saving trick: Enable Auto Offload Unused Apps in the same screen. iOS will automatically offload apps you rarely use, but it will reinstall them when you tap the icon.
Step 5: Manual Cleanup with iOS 20’s “Cache Sweep”
iOS 20 includes a hidden diagnostic tool called Cache Sweep that runs automatically when storage is low, but you can trigger it manually.
- Connect your iPhone to a power source (Wi-Fi recommended).
- Open Settings > General > About.
- Scroll to Storage Status (new in iOS 20). Tap Run Storage Check.
- iOS will scan for orphaned cache files from deleted apps, duplicate photo caches, and residual download files.
- Tap Optimize – this deletes all found cache without affecting your personal data.
Conclusion
You do not need a third-party “cleaner” app in 2026. iOS 20’s built-in tools—the Clear System Cache button, Partial Clear in Safari, and Offload App—cover every type of cache. Performing these steps monthly keeps your iPhone running smoothly. Always start with System Cache (the biggest gain), then move to Safari and individual apps. If you are still short on space after clearing cache, consider deleting old Messages attachments and large WhatsApp videos.
FAQ
1. Does clearing the cache delete my passwords?
No. Clearing cached images and files does not touch passwords saved in iCloud Keychain. However, clearing History and Website Data in Safari will also clear cookies, which may log you out of some websites. Use the Partial Clear option (iOS 20) to avoid this.
2. How often should I clear the cache?
Once every 1–2 months is sufficient for most users. If you use many web apps or media-heavy apps (like TikTok), clearing the system cache monthly is ideal.
3. Will clearing the cache make my phone faster?
In most cases, yes. A bloated cache (especially System Data over 10 GB) can cause lag in app switching and photo loading. Clearing it frees RAM bandwidth and reduces storage fragmentation.
4. What is the difference between “Offload App” and “Delete App”?
- Offload App: Removes the app and its cache but keeps all saved data (documents, settings, logins).
- Delete App: Removes everything—app, cache, and all data. You lose your login info and drafts.
5. Why is my iPhone storage still full after clearing cache?
Cache is temporary data. If you have thousands of large photos, iMessage attachments, or downloaded offline content (e.g., Spotify playlists), cache is not the culprit. Check iPhone Storage for large apps and delete old message attachments.
6. Is it safe to clear System Cache in iOS 20?
Yes. Apple designed the Clear System Cache button to remove only temporary files that the system can regenerate. It will not delete your OS files, photos, or apps. It is equivalent to the cache-clearing function on Android.
