You can download BackCheck 1.2 for Mac from our application library for free. BackCheck for Mac lies within System Tools, more precisely Backup & Restore. The actual developer of this Mac application is turingart, branch of CUBiC.
From the developer:
Using a streamlined single-window interface, BackCheck compares folders and identifies what's different.
You may want to check out more Mac applications, such as FCP Versioner, CarbonErrors or iSauvegardes, which might be related to BackCheck.