First, download and install iPhone Data Eraser on your computer. Then connect iPhone to your computer with a USB cable. And your iPhone will be detected automatically.
"Express Cleanup" is the right item for you to make iPhone faster. After selecting "Express Cleanup", you can click "Start Scan" to analyze iPhone. When the process is finished, you can see a list of files.
Preview the data displayed on the window. Tick what you want to erase and the data will be deleted forever after you click "Erase Now". Click the "Done" or "Rescan" button to finish this course.
iPhone Data Eraser helps you make iPhone faster by deleting useless data completely. It can erase all kinds of files, bookmarks but also photos, browsing history, caches, contacts, call history, ect. from iPhone, iPad and iPod. I have to remind you here any kind of files cleaned by this software can not be recovered in any way. So before deleting them, you should think twice!