Clearing cache on an iPhone is not quite as simple as it is on Android. There is no single button that clears the cache for every app on your iPhone at once.
Instead, the right method depends on what you want to clear. Safari has built-in controls for clearing website cache and cookies, browsers such as Chrome have their own browsing-data controls, and some third-party apps include a cache or storage option inside the app itself.
For apps that do not provide a cache-clearing option, iPhone gives you choices such as offloading or deleting the app—but those options do different things.
Quick answer: To clear Safari cache, go to Settings > Apps > Safari. You can use Clear History and Website Data, or go to Advanced > Website Data if you want to remove website data without clearing your entire browsing history. For other apps, first check whether the app has its own storage or cache control before considering deletion and reinstallation.
What Is Cache on an iPhone?
Cache is temporary data that websites and apps store so they can load information more quickly the next time you use them.
Examples can include:
- Website files and images.
- Temporary browser data.
- Downloaded thumbnails.
- Previously loaded app content.
- Temporary files created while an app is running.
Cache is not automatically bad. It often makes apps and websites faster because your iPhone does not need to download the same information repeatedly.
The reason to clear it is usually because you are troubleshooting a problem or trying to reclaim storage not because cache needs to be deleted every day.
When Should You Clear iPhone Cache?
Clearing cache can make sense when:
- A website is loading old or broken content.
- Safari is behaving strangely.
- A browser is using much more storage than expected.
- An app has accumulated a large amount of temporary data.
- An app is malfunctioning and its own support instructions recommend clearing temporary files.
- Your iPhone is low on storage and you are investigating what is using the space.
If your only goal is freeing storage, cache may not be the biggest thing taking up space. Photos, videos, downloaded media and large apps can use considerably more storage.
For a broader cleanup, see our guide to freeing up phone storage without immediately deleting apps.
Before You Clear Anything
Different cleanup options remove different types of data.
| Option | What It Does |
|---|---|
| Clear Safari history and website data | Removes Safari history, cache, cookies and other website data |
| Remove Safari website data | Removes cookies and stored website data without clearing the full browsing history |
| Clear cache inside an app | Depends on that app's implementation |
| Offload App | Removes the app itself but keeps its documents and data |
| Delete App | Removes the app and its related local data |
That distinction is important because Offload App and Delete App are not the same thing.
How to Clear Safari Cache on iPhone
Apple provides a direct way to clear Safari history, cache and cookies.
On current iOS versions:
- Open Settings.
- Tap Apps.
- Tap Safari.
- Scroll down and tap Clear History and Website Data.
- Select the timeframe you want to clear.
- Tap Clear History to confirm.
This clears Safari browsing history and website data from the selected timeframe.
Apple notes that clearing Safari history does not change your AutoFill information.
You can verify the current steps in Apple's official Safari cache and cookie guide.
You can also clear history directly in Safari
Apple also allows you to clear browsing history from inside the Safari app.
Open Safari, go to your browsing history, choose Clear, and select the timeframe you want to remove.
If you use Safari Profiles, you may also be able to choose whether to clear one profile or all profiles.
Clear Safari Cache Without Deleting Your History
Sometimes you want to remove cookies and website data without wiping the visible Safari browsing history.
Apple provides a separate option for this.
- Open Settings.
- Tap Apps.
- Select Safari.
- Tap Advanced.
- Tap Website Data.
- Tap Remove All Website Data.
- Confirm by tapping Remove Now.
Apple says this removes data that websites use for tracking and for remembering information such as website logins.
That means you may need to sign back into some websites afterward.
If Remove All Website Data is unavailable, Apple says there may be no website data stored, or Screen Time web-content restrictions may be preventing the option from being used.
How to Clear Chrome Cache on iPhone
If you use Chrome instead of Safari, clearing Safari data will not clear Chrome's browser cache.
Chrome manages its own browsing data.
- Open Chrome.
- Tap the More menu.
- Tap Delete Browsing Data.
- Select the time range you want.
- Open Browsing Data.
- Select the data you want to remove, such as cached images and files.
- Confirm your selection.
- Tap Delete Browsing Data.
Be careful when selecting additional categories. Cookies, saved login data, browsing history and cached files are different types of information.
Google provides the current iPhone instructions in its official Chrome browsing-data guide.
How to Clear App Cache on iPhone
This is where iPhone differs significantly from many Android phones.
There is no universal Clear cache button under every iPhone app.
Instead, start with the app itself.
Method 1: Look for a cache or storage option inside the app
Some apps include their own controls for temporary downloads, browser data, media or cached content.
Open the affected app and look under menus such as:
- Settings.
- Storage.
- Data.
- Downloads.
- Privacy.
- Free up space.
If the app provides its own cache-clearing feature, that is usually preferable to deleting the entire app.
Method 2: Check the app's storage usage
Open:
Settings > General > iPhone Storage
Wait for the storage list to load, then tap the app.
Apple shows information about the space being used by apps and, depending on the app, may provide options for managing its storage.
Apple notes that cached and temporary data may not always be included in the app's reported storage usage.
See Apple's official iPhone Storage guide.
Does Offloading an App Clear Its Cache?
This is one of the most misunderstood iPhone storage features.
Offloading is not the same thing as completely deleting an app's data.
When you offload an app, Apple removes storage used by the app itself but keeps its documents and data.
To offload an individual app:
- Open Settings.
- Tap General.
- Tap iPhone Storage.
- Select the app.
- Tap Offload App if that option is available.
When the app is reinstalled, its saved documents and data can be restored.
Because the documents and data remain, you should not assume that offloading gives you the same completely clean state as deleting an app.
Automatic Offload Unused Apps
iPhone can also automatically offload apps that you rarely use when storage is low.
On current iOS versions, Apple documents the option under:
Settings > Apps > App Store > Offload Unused Apps
This is primarily a storage-saving feature, not a universal cache cleaner.
Delete and Reinstall an App to Remove Its Data
If an app has no cache option and you need a truly fresh installation, deleting and reinstalling it can be more thorough than offloading.
However, this is also more destructive.
Apple says deleting an app removes the app and its related data.
Before deleting anything, check whether the app contains:
- Local documents.
- Downloaded media.
- Drafts.
- Offline files.
- Game saves.
- Authenticator information.
- Messages that are not backed up.
Also make sure you know your login credentials.
To delete an app:
- Touch and hold the app.
- Tap Remove App.
- Tap Delete App.
- Confirm the deletion.
- Reinstall the app from the App Store if you still need it.
Apple's current instructions are available in its app removal guide.
Can You Clear System Cache on iPhone?
iPhone does not provide a normal user-facing button labeled Clear System Cache or Clear All Cache.
iOS manages many temporary and cached files automatically.
If you are investigating unusually high storage usage, start with:
Settings > General > iPhone Storage
Then look at Apple's storage recommendations and identify which apps or content categories are actually consuming space.
Avoid internet tricks that require changing the date, repeatedly filling the phone's storage, installing unknown configuration profiles, or using other unsupported methods just to force System Data to change.
If storage is the real problem, removing large videos, downloads or unused apps is generally more predictable than trying to force iOS to purge an undefined amount of temporary data.
Find Which Apps Are Using the Most Storage
Before deleting anything, see where the storage is actually going.
- Open Settings.
- Tap General.
- Tap iPhone Storage.
- Wait for iOS to calculate usage.
- Review the app list.
Tap an app to see more information about how much space it uses.
You may find that the main problem is not cache at all.
Common large-storage categories include:
- Photos and videos.
- Offline movies or music.
- Downloaded podcasts.
- Messaging attachments.
- Large games.
- Files stored for offline use.
Apple also displays storage recommendations when appropriate.
Do iPhone Cache Cleaner Apps Work?
Be skeptical of any app claiming that it can press one button and completely clear the private cache of every other app installed on your iPhone.
The reliable cleanup methods are the controls provided by iOS, Safari, individual apps and their developers.
A storage-cleanup app may still help you identify things such as duplicate photos or large media files if that is what the app is designed to manage, but that is different from clearing every app's internal cache.
Do not pay for a cleaner app simply because it promises a mysterious “RAM boost” or “100% cache removal.”
What Should You Avoid Deleting?
The biggest risk when cleaning an iPhone is confusing temporary cache with important app data.
Be especially careful before deleting:
- Messaging apps without a current backup.
- Authenticator apps.
- Apps containing local drafts.
- Games with unsynced saves.
- Offline work files.
- Downloaded media you cannot easily replace.
If you are unsure what an app will remove, check that app's official support information before tapping Delete App or using its internal storage controls.
Frequently Asked Questions
How do I clear cache on my iPhone?
For Safari, open Settings > Apps > Safari and use Clear History and Website Data. For other apps, check whether the app provides its own cache or storage option. iPhone does not have one universal button for clearing every app's cache.
How do I clear Safari cache on iPhone?
Go to Settings > Apps > Safari > Clear History and Website Data, select a timeframe and confirm the deletion.
Can I clear Safari cache without deleting browsing history?
You can remove stored website data separately by going to Settings > Apps > Safari > Advanced > Website Data > Remove All Website Data.
How do I clear app cache on iPhone?
First check whether the app has a built-in cache or storage option. If it does not, review the app under Settings > General > iPhone Storage. Deleting and reinstalling can remove the app and its related local data, but you should back up anything important first.
Is there a Clear Cache button for iPhone apps?
Not for every app. Unlike many Android phones, iOS does not provide the same universal per-app Clear Cache button for all installed applications.
Can I clear all cache on iPhone at once?
There is no standard iOS control that clears every app and browser cache with one tap. Safari, third-party browsers and other apps manage their data separately.
Does Offload App clear cache?
Offloading frees the storage used by the app itself while keeping its documents and data. It should not be treated as the same thing as completely deleting all of the app's local data.
What is the difference between Offload App and Delete App?
Offload App removes the app while keeping documents and data. Delete App removes the app and its related local data.
Will clearing Safari cache delete my passwords?
Apple says clearing Safari history and website data does not change AutoFill information. Removing cookies and website data can still sign you out of websites, so you may need to log in again.
Will clearing cache delete my photos?
Clearing Safari cache does not delete photos from your Photos library. However, deleting an app can remove data stored locally inside that app, so check what the app contains before removing it.
How do I clear Chrome cache on iPhone?
Open Chrome, tap More > Delete Browsing Data, select the timeframe and choose the browsing data you want to remove, such as cached images and files.
Why is my iPhone Storage still full after clearing cache?
Cache may not be the main cause. Open Settings > General > iPhone Storage and check which apps and content categories are consuming the most space. Photos, videos, downloads and large apps often use much more storage.
Should I clear iPhone cache every day?
No. Cache exists to make apps and websites load efficiently. Clear it when troubleshooting a problem or when you have identified unnecessary cached data that is consuming storage.
Does clearing cache make an iPhone faster?
It can help when corrupted or excessive temporary data is causing a specific browser or app problem. Clearing cache is not a guaranteed general performance boost, and constantly deleting useful cached data can simply cause apps and websites to download it again.
Can I clear System Data on iPhone?
iOS does not provide a normal Clear System Data button. Review Settings > General > iPhone Storage and manage the apps and content that iOS allows you to control rather than relying on unsupported tricks.
Final Thoughts
Learning how to clear cache on iPhone starts with understanding that there is no single cache for the entire device.
Safari provides built-in controls for clearing browser cache, cookies and website data. Chrome and other browsers manage their own browsing data, while third-party apps may provide their own cache or storage controls.
For apps without a cache option, remember the important difference between Offload App and Delete App: offloading keeps documents and data, while deleting removes the app and its related local data.
Before removing anything important, check Settings > General > iPhone Storage. That will help you determine whether cache is actually the problem—or whether photos, videos, downloads or large apps are responsible for most of your storage usage.