When comparing CrcCheckCopy vs Kompare, the Slant community recommends CrcCheckCopy for most people. In the question“What are the best folder/file compare/diff tools for either OSX, Linux or Windows?” CrcCheckCopy is ranked 11th while Kompare is ranked 19th. The most important reason people chose CrcCheckCopy is:
Files are scanned and their CRC32 hash is stored in a extra file. Using this file you can validate if another folder is identical with this one, even if the other folder is on an offline backup, like your dad's computer.
Specs
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Pros
Pro You do not need concurrent access to the folders you are comparing
Files are scanned and their CRC32 hash is stored in a extra file. Using this file you can validate if another folder is identical with this one, even if the other folder is on an offline backup, like your dad's computer.
Pro Can create patch files
Kompare can create a patch file which lists the differences between two files. Patch files created this way are also compatible with the patch files created by the CLI diff utility.
Pro Supports comparing directories
Kompare can compare both files and directories.
Pro Configurable hotkeys
Because it's a KDE app, all the hotkeys are configurable
Cons
Con No GUI
No GUI, so if you cannot handle the MacOS terminal or the Windows command prompt, there are other tools to use to compare folders.