Purpose: integrated use of Exiftools within Photolab, with an easy interface, thus avoiding the command line interface of Exiftools.
I have been writing a wrapper library around ExifTool for my own use in programming. It’s not easy. I have done some of the wrapper code but I haven’t even got to the UI part yet.
Don’t expect DxO to take you up on that too soon
There are Exiftool graphical interfaces for Windows and Mac: