Smart Mac Care is also one of the best Mac cleaners out there that promises good optimization. These tools further help to build indexes or databases. It also involves utility tools like storage management, network diagnosis or screen sharing. It helps in cleaning junk data or maintaining the performance. However, since it has a UI that isn’t the best, it stands as a decent option among the other. OnyX is one of the best Mac cleaner software, from Titanium, which optimizes your Mac for a performance boost. The interface is simple and easy-to-use.With the trial pack, you can remove around 500 MB of data. You can further clean build-up of junk, malware, cache memory, and more from your Mac. At first, to understand and find the performance problems or security threats, ensure running a smart scan. CleanMyMacXĬlean My Mac is one of the best free Mac cleaner software that comes with a simple user interface, uninstaller, and shredder. Best Mac Cleaner Apps and Optimization Softwareīest Mac Cleaner Apps and Optimization Software 1.