Wheel Of Fortune Free Play, like most apps and games, caches data. This means that information which comes from a website or an app may be stored on your computer, smartphone or tablet. This data is stored on your machine so that next time you go to use it within the app or game in question, it will already be available. This information may include images, files or scripts. Any photos that are cached are from public sources, such as Facebook profiles, provided they are set to public view. The simple reason for this is to save on loading time in order to make the game run more smoothly.