In fact, the premium version will delete the list of found issues and say that your Mac is optimized and safe to use. Of course, some features do work to the expected extent, however, the overall functionality is simply meant to force people into activating the full version, which ostensibly opens a horizon of extended features to boost up Mac performance.
Unfortunately, most experts have doubted its efficiency and suspected Mac Cleaner of generating fake lists of errors. It is initially presented as a utility to solve system issues, protect Mac, and maintain high-tier performance. Mac Cleaner can be described as a potentially unwanted program meant to acquire financial gain on gullible users.