It is a decent cleaner but lacks in-depth features and advanced safety precautions to prevent accidental data loss. What is the best free mac cleaner app?ĬCleaner has arguably been the top choice for free optimization software for both Mac and PC users for the last decade. It lets you clean your MAC from unnecessary files that can slow down your MAC or take unnecessary spaces. CCleaner for Windows is also a very popular PC cleaner software. Frequently Asked Questions What is the best software to clean a mac?ĬCleaner for MAC is one of the best MAC cleaner software that can be used to clean your MAC.