Folder Sync Pro 4+

Does a great job finding duplicate folders, but lacks the ability to save results. When comparing very large file structures, it took all night, took a very short time to sync, then automatically started the 8-hr sync process again with no indication of what was fixed, what wasn't, and what the historical state looked like. I now have to wait another day to see if it actually worked, rather than it giving me the ability to spot check on my own. Thanks.
Also should have check boxes for which files to tranfer rather than a right click.

I had a situation with possible corruption or deletion of a large number of files. I had a backup, but I didn't want to do a total replacement since I knew some source files had legitimately been changed since the backup was made.

I was looking at a very time-intensive task to clean everything up until I discovered this app. I used it to scan the source and backup folders. It clearly showed which files were different, giving me an option to sync in either direction or bidirectionaly for each file and/or subfolder.

I could not be happier. This app was exactly what I needed and worked perfectly. I highly recommend it!

My first version of this is 2.12 and it works like a charm. I was a little hesitant to choose this app reading some of the reviews of earlier versions. But, I was in a jam and needed an app with this functionality ASAP. So I gave it a try and it worked perfectly. I recomend turning off “Compare File Content” as it will greatly slow down the comparison process. Just having “Compare Modify Date” should be enough for most users like me. Thank you Yong Chen, you helped me to save the day.