ClearDisk 2.12 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. ClearDisk for Mac lies within System Tools, more precisely System Optimization. The actual developer of this Mac application is Nektony.
From the developer:
ClearDisk enables you to Clear the HD of useless files. It removes unused language resources, unnecessary downloads, old caches and even clears Trash.
You can clean your Mac by a single click: all junk files (System Caches, User Caches, System Logs, User Logs, User Downloads, Trash, Internet Cache, etc.) will be removed immediately.
You may want to check out more software for Mac, such as TM Error Logger, SlimBatteryMonitor or FontNuke, which might be similar to ClearDisk.