How to Choose the Best Mac Cleaner Apps in 2020. Before we review this year’s best Mac cleaners, let’s briefly discuss the crucial factors we need to consider when choosing the best app for cleaning your Mac. Core functions: The basic goal of using Mac clean up tools is to free up storage space. That’s why you need to choose a one-stop. A quick scan took only 30 seconds and the app found 4.16 GB files ready for safe cleanup. One particular section we like about CleanMyMac is the “Maintenance” module, which is packed with 7 useful utilities that help fix various common Mac issues, such as speed up Mail, verify startup disk, repair disk permissions, flush DNS cache, etc. Uninstall apps from your Mac and clean all their left-over files safely. Show Reviews Developer's.
Mac's don't need defragging as OS X automatically writes 2Gb or below sized files to one contiguous space on the drive. There are certain cases where's it's needed to free up a large spaces on the drive, but not something everyone has to do.
Free Mac Cleaning App
Best Free Mac Cleaner App
Far as other Mac maintainence, there really isn't any except to backup one's files regularly. Keeping Software Updated and run a web browser check to make sure the plug-ins are current.
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For Safari and Flash, this check is more accurate
Best Mac Cleanup App
Most of those cleaning programs are junk, especially MacKeeper.
If your friend got onto your computer and visited a bunch of adult sites, then I would recommend something like OnyX, doing ALL the cleaning and maintenance aspects and rebooting, perhaps followed by a Disk Utility Erase free space.
House Cleaning Apps
CCleaner beta is out for OS X, used on PC's and combines cleaning and scrubbing of the drive if setup correctly.
Best Mac Cleaner App
If your interested in performance, read my post here