CleanMyDrive 2.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is a product of Mac Paw. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
CleanMyDrive 2 is a lightweight disk manager for external and internal drives. It provides quick access to any drive with detailed information on space usage, and cleans hidden junk from external disks. It's lightning fast and easy to use, with a convenient interface that opens right from the OS X menu bar. CleanMyDrive 2 is the new, improved version of CleanMyDrive, with a beautiful makeover and a whole set of new features.
You may want to check out more Mac applications, such as CleanMyDrive: External Drives Manager, which might be related to CleanMyDrive.