The iPhone does not have one universal button that clears every app’s cache. The correct method depends on whether the storage belongs to Safari, another app, downloaded media, or temporary system data.
Clear Safari Website Data
- Open Settings.
- Tap Apps, then Safari.
- Tap Clear History and Website Data.
- Select the available timeframe and other options.
- Confirm the removal.
This can sign you out of websites and remove site-specific data.
Clear Data for Another App
- Open Settings.
- Tap General.
- Tap iPhone Storage.
- Select the app using excessive storage.
- Review its app and document/data usage.
- Use Offload App if appropriate to remove the app while retaining its documents and data, or delete and reinstall the app if you intentionally want a more complete reset of its local storage.
Check the App Itself
Some apps provide their own controls for downloads, cached media, or temporary files. Look inside the app’s settings before deleting it, especially if it contains locally stored information that is not synchronized elsewhere.
Do You Need a Cache Cleaner?
Usually not. iOS manages much temporary storage automatically. Be cautious with apps or websites promising to clean every hidden cache or dramatically speed up an iPhone. Third-party apps do not receive unrestricted access to every other app’s private storage.
If Storage Is the Real Problem
Use iPhone Storage to identify what is actually consuming space. Photos, videos, messages, offline downloads, and large apps often matter far more than browser cache.
Restart Before Deleting Data
If an app suddenly behaves incorrectly, try closing and reopening it or restarting the iPhone before deleting local data. A temporary software problem can disappear after a restart, while deleting an app may remove information that exists only on the device.