The best approach to cleaning and optimizing your iPhone and iPad is to delete unnecessary files, garbage files, temporary files, caches, and cookies. Additionally, it is advised to regularly clean your device to prevent memory hogs and slow and sluggish performance. Therefore, if you are cleaning your equipment by hand, it can take some time. Fortunately, there are top iPad and iPhone cleaning apps and websites that not only increase the performance of your device but also provide you with a quick summary of its performance and spare space details. Here are the top 5 best iPhone apps for cleaning up useless data. Let's dive into details and see which tool is best for your Apple smartphones.