CleanMyPC is a concise and excellent system cleanup and optimization program for Windows. It is a companion product of MacPaw following its popular similar tool for Mac - CleanMyMac, which can be considered as a Windows edition of CleanMyMac. With CleanMyPC, users can quickly and effectively clean up a large number of junk files, useless files, temporary files, cached files that waste much disk space, and improve the system performance.

Avira used to be bundled with TuneUp Utilities for sale, but it's a pity that AVG successfully became a listed company (i.e.: went public) in 2012 and acquired TuneUp Utilities as a whole - became now AVG PC TuneUp, which directly made the marriage between Avira and TuneUp Utilities impossible. After that, the Norman company from Norway once got very close to 360Amigo System Speedup (now ToolWiz's developer from China) by way of bundling too, but in the end Avira took over 360Amigo before Norman. Then 360Amigo was first offered as an OEM component of Avira's advanced versions of security software, and then fully acquired.

Like Windows, the Mac system generates a lot of junk files in the process of running too. To find a good Mac system cleaning tool, many people would recommend CleanMyMac to you, which currently has the best reputation, strength and sales volume in the market. It can be regarded as an edge tool for cleaning and optimizing the Mac OS.

First of all, I have to declare: AppNee has no interest or patience for any all-in-one type of system tools such like System Mechanic. Any similar software will come to the end of a blind alley when they develop to the end - their functions are many but not fine, miscellaneous but not pure, can do many things but none can be done best. Anyway, since our computer needs regular maintenance to keep good performance, so System Mechanic is worth a try. Maybe it's just what you like or need.

CCleaner is not the most powerful PC cleaner, but it is currently the most popular and reputable one among all similar software, this is the truth. After being ported onto Android platform, CCleaner for Android has not been able to continue the strong performance of the PC edition. Before that, it at least has to catch and surpass one of its main rivals (although extremely difficult) - the Clean Master from China.