Please note that this tutorial was created on an older version of iOS. If necessary, visit the updated version created on iOS 5.1.
Your iPhone's cache is temporary storage space on your device where recently viewed Web pages are held. Cache allows Safari to quickly load a previously visited page without having to reload the entire page and its images from the Web server on subsequent visits. You may have the desire to delete your iPhone's stored cache for a variety of reasons. This tutorial will show you how to accomplish that feat in a few easy steps.
Please note that the Safari application must be completely shut down prior to clearing any history, cache, cookies, etc. If you are unsure how to do this, visit our How to Kill iPhone Apps tutorial.
First select the Settings icon, normally located towards the top of your iPhone 4 Home Screen.