How to clear your iPhone cache and improve performance

Cache is a collection of temporary files that apps and websites store locally on your device to speed up loading, browsing, and your overall session. For example, Safari saves images or scripts from sites so they don't have to download again. While helpful, too much cache can slow your iPhone down, so clearing it regularly keeps performance smooth.

Clearing cache only removes temporary data, not your bookmarks, messages, photos, or passwords. Cache stores copies of images, scripts, and other elements so websites load faster next time. Cookies, by contrast, save personal data like logins, preferences, and shopping cart items; deleting cookies erases your logins and settings, requiring you to sign in and reconfigure preferences.

How often you clear cache depends, but a good habit is to clear your browser cache monthly and restart your iPhone daily or at least once a week. You should also regularly offload or delete apps you don't use, especially if they're taking up too much space or acting glitchy.