After testing the trial version of your software, I have some questions:
The program displays only 3 pairs of images (similarity of 100% to 97%) on a folder of 500 pictures where there are many who look alike.(In the preferences, I choosed 70% of similarity.) Is a limitation on the demo version ?
The program does not recognize the similarity between 2 very close images (theses images are identicals but one of theses is slighly cropped at 90%).