I can't find the Duplicate File finder on the Mac version? Is this present? I specifically purchased the Mac version for duplicte file detection.
The duplicate finder tool is not available in CCleaner for MAC, it's only available in the Windows version.
Well that's a problem. That should be more clear with a feature comparison chart or similar documentation.
Whilst I've not seen a comparison chart as such, the documentation does say what CCleaner for MAC will do.
The Documentation for each version has a section called 'What it can and can't do".
Windows version documentation says that it can find duplicate files, the Mac documentation doesn't
https://www.ccleaner.com/docs/ccleaner/introducing-ccleaner/what-it-can-and-cant-do
https://www.ccleaner.com/docs/ccleaner-for-mac/introducing-ccleaner-for-mac/what-it-can-and-cant-do
There are also plenty of online reviews of CCleaner for MAC, did you not notice that none of them mention the duplicate finder?
After using CCleaner for windows many years I purchased the CCleaner Professional for MAC. I'm very disappointed in the limited options for this version. For the price I also do not like having to work around the startup for the software. In my onion this product is a scam for the MAC users. Very disappointed.