iPhones do not have a single button to clear cache for all apps; you must manage it per app through individual settings or by offloading/deleting the app.

Because iOS manages app storage in isolated sandboxes, there is no system-wide way to clear cache for every app at once. For most apps, you must either check the app's own settings for a clear cache option or use the iPhone Storage menu to offload or delete the app. Offloading removes the app while keeping your personal data, while deleting removes the app and all its associated data for a fresh start. Safari is a notable exception, as it provides dedicated options to clear history and website data directly through the Settings app.

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