Downloading SimilarImageHunter 1.1 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. SimilarImageHunter for Mac is included in System Tools. We recommend checking the downloaded files with any free antivirus. This free Mac application is a product of yulingtianxia.
From the developer:
SimilarImageHunter is designed to help you identify similar images by selecting the origin path and the target path. The utility will show you the similarity in the final results. Double clicking the path will open the file. The tool supports most common image formats.
You may want to check out more Mac applications, such as Libra, TrimTheFat or DataLore, which might be similar to SimilarImageHunter.