Combo Cleaner is a system optimization and protection tool that offers to boost your Mac's performance. The program's features seem to be comprehensive, including the most commonly met cleaning functions. Yet, only two maintenance features are available with the free version of Combo Cleaner, which is rather inappropriate, considering that you will find no warnings about these limitation.
At first launch, you need to confirm the Home and the Applications directories of your Mac. Your selections will be preserved for all future scans. Once the scan folders are established, the main window opens up with a dashboard that displays short descriptions of all the provided functions and vital information about the disk space, the RAM memory, and the CPU usage of your Mac. Then, you can switch to one of the available cleaning and protection modules tabbed at the left side of the interface. As already mentioned, you will be unpleasantly surprised to learn that you can use only two functions out of the six cleaning modules. Therefore, you can clean your disk of unnecessary files, including junk files, logs, and cache files. In addition, you have the ability to scan for viruses, malware, and adware programs, so you can benefit from a healthy and fast-running operating system. The virus signatures are updated constantly, so you'll be also protected against the latest security threats. Unfortunately, other cleaning functions, such as finding and removing large and duplicate files, privacy items and obsolete apps are not available with the free version.
To conclude, Combo Cleaner offers to remove for free junk files and items suspicious of malicious content. However, it is unfair to users not to inform them about the severe limitations of the free version. A short notice about these restrictions should be included - out of common sense - in the developer's description.