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How to Clear App Cache on iPhone (The Right Way for iOS)
The fastest way to clear app cache on iPhone depends on what you want to clear. For Safari and stale websites, go to Settings > Safari > Clear History and Website Data. For an individual app, iOS gives you no universal “clear cache” button — you either use the app’s own in-app clear-cache setting (if it has one) or offload/delete the app from Settings > General > iPhone Storage and reinstall it.
That difference trips up almost everyone switching from Android. Here is exactly how iOS handles it.
Key Takeaways
• iPhone has no system-wide “clear app cache” button. Apple makes each app manage its own cache.
• For websites/Safari, clear cache in Settings > Safari > Clear History and Website Data (or per-site under Advanced > Website Data).
• For apps, use an in-app setting if available, or Offload App (keeps your data) vs Delete App (wipes everything), then reinstall.
• A restart clears temporary memory and fixes many glitches in seconds.
• If a *site you own* shows an old version, the real fix is purging the server cache, not the device.
Why does iPhone have no “clear app cache” button?
On Android, you open Settings, tap an app, and hit Clear Cache. iOS does not work this way.
Apple’s design treats cache as the app’s responsibility. Each app stores its own temporary files, and iOS expects the app to manage and trim them automatically. There is no central toggle to flush one app’s cache without touching the rest.
This is the single biggest source of confusion for switchers: there is no universal clear-cache button on iPhone. For a misbehaving app, your real options are (1) an in-app clear-cache setting if the developer added one, or (2) Offload App (frees the cache but keeps your data and documents) versus Delete App (wipes everything). For a stale website, though, it is simple — Settings > Safari > Clear History and Website Data. Knowing which problem you have decides which fix you use.
What kinds of cache can you clear on iPhone?
There are three practical categories, and each has its own method.
| Cache type | What it stores | How to clear it |
|---|---|---|
| Safari / website data | Browsing history, cookies, cached web pages | Settings > Safari > Clear History and Website Data |
| Per-site website data | Cached files for one specific website | Settings > Safari > Advanced > Website Data > swipe to delete one site |
| Individual app cache | App’s temporary downloads, images, logs | In-app setting (if available) or Offload/Delete the app |
| Temporary system memory (RAM) | Active app states, short-term buffers | Restart the iPhone |
How do you clear Safari cache on iPhone?
This is the fix for a website that looks broken, won’t update, or shows an old layout.
Clear all Safari data
- Open Settings.
- Tap Safari.
- Scroll down and tap Clear History and Website Data.
- Confirm.
This removes history, cookies, and cached pages. You will be signed out of most sites, so expect to log back in.
Clear data for one website only
If only a single site is acting up and you don’t want to lose everything:
- Settings > Safari > Advanced > Website Data.
- Find the site in the list (use the search bar).
- Swipe left on it and tap Delete.
This keeps your logins and history for every other site intact — the precise fix when one stale website refuses to refresh.
Cache is not the same as DNS. If a site won’t load at all (rather than showing an old version), the problem may be DNS, not Safari cache. See and .
How do you clear cache for a specific app on iPhone?
Because there is no universal button, work through these in order.
Method 1: Use the app’s in-app setting
Some apps build their own cache controls. Open the app, go to its Settings (often a gear icon or your profile), and look for Storage, Cache, or Clear Cache. Streaming, social, and browser apps frequently include this. If it exists, it is the cleanest option — no reinstall needed.
Method 2: Offload the app
If there’s no in-app control, offloading clears the bulk of an app’s cache while keeping your documents and data:
- Settings > General > iPhone Storage.
- Tap the app.
- Tap Offload App.
- Reinstall by tapping the app icon (it stays greyed-out on your Home Screen until you do).
Offload removes the app binary and its cache but keeps your saved data. When you reinstall, the cache starts fresh.
Method 3: Delete and reinstall the app
For a deeply broken app, a full wipe forces a clean cache:
- Settings > General > iPhone Storage > [app] > Delete App, or press and hold the icon and choose Delete App.
- Reinstall from the App Store.
Delete removes everything — cache *and* your data. Make sure your content is backed up or synced to an account first.
Offload vs Delete — which should you pick?
- Offload App — keeps documents and data. Best for clearing cache without losing progress, logins, or downloads.
- Delete App — removes everything. Use only when the app is badly corrupted or you want a true factory-fresh start.
Does restarting the iPhone clear cache?
Partly, yes. A restart clears temporary system memory (RAM) — the short-term buffers active apps use. It won’t wipe stored Safari data or an app’s on-disk cache, but it resolves a surprising number of glitches: a frozen app, a feature that stopped responding, or sluggish performance.
To restart, power off fully and turn the device back on, or use Settings > General > Shut Down. It takes under a minute and is always worth trying first before deleting anything.
Why clear app cache on iPhone at all?
Three common reasons:
- Free up storage. Cache files accumulate and quietly eat gigabytes, especially in streaming and photo-heavy apps.
- Fix a glitchy app. Corrupted cached data causes crashes, blank screens, and stuck loading. A fresh cache often fixes it instantly.
- See an updated website. Safari may serve an old cached version after a site changes. Clearing website data forces the latest version.
When the cache isn’t on your device at all
If you run a website and it shows an old version on iPhone even after you cleared Safari data, the stale copy may live on your server, not the device. In that case, clearing the phone does nothing — every visitor still sees the outdated page until the server cache is purged.
DarazHost hosting runs on LiteSpeed, which lets you clear server-side cache in a click so all visitors get the latest version immediately — not just you. Paired with fast load times and 24/7 support, it means your updates actually reach people. If “I cleared my cache but the site is still old” sounds familiar, the fix is on the server side.
Frequently asked questions
Does iPhone have a clear cache button like Android?
No. iOS has no system-wide clear-cache button for apps. Apple makes each app manage its own cache, so you use an in-app setting if one exists, or offload/delete the app and reinstall it. Only Safari has a direct cache control under Settings.
Will offloading an app delete my data?
No. Offload App removes only the app and its cache while keeping your documents and data. When you reinstall, your saved content returns. Use Delete App if you want to remove everything, including data.
How do I clear cache for just one website on iPhone?
Go to Settings > Safari > Advanced > Website Data, find the site, swipe left, and tap Delete. This clears that single site’s cached data without affecting your other logins or history.
Why does a website still look old after I cleared Safari cache?
If clearing Safari didn’t help, the old version may be cached on the website’s server rather than your iPhone. The site owner needs to purge the server cache. This is different from a , which prevents a site from loading at all.
Is clearing cache safe?
Yes. Clearing cache removes temporary files only. You may be signed out of websites or apps and need to log back in, but no personal documents are lost — unless you choose Delete App, which removes app data too.
