Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This Mac app was originally designed by Judhajit Ray. The software belongs to Audio & Video Tools.
From the developer:
DuPics is a necessary tool for every Mac users to clean duplicate copies of photos that pile up on your hard drive over the course of time. Using DuPics, one can easily bring together all the duplicate copies of a given image into an intuitive app interface from where users can copy, move and delete these files with ease.
You may want to check out more Mac applications, such as WAVManager or Aiseesoft FLV Converter Suite for Mac, which might be similar to DuPics.