I will say with full confidence don’t be cheap and buy the “Duplicate Finder” app which is also made by the same developer it complements this app and makes it virtually perfect. This little app is a very nice plugin for anyone who wants to truly uninstall applications, monitor your system stats, and free up memory.
Cleaner has a brand new user interface, making it even simpler and easier to use. It also features a large-file scanner that finds all large files (customizable size) on your Mac's disk. Cleaner is the only free app that offers memory optimization and disk cleaning to help you speed up your Mac.