Gemini v1.5.13 (Mac OS X)
 

Duplicate files can run - But they can't hide. Now, you can find & remove them with Gemini.
Stop wasting space on duplicates. Gemini finds duplicates on your Mac and removes them. It's quick, easy, and saves you hard drive space.
Compatible and optimized for OS X Yosemite!
"...Gemini does its job well, and with just the right amount of cheek, at that." Macworld
"It could have looked like a dog and I would still have enjoyed the way that it worked, but having it look and feel as great as it does is a nice bonus." TheNextWeb
"Gemini's speed is really impressive." TUAW
Featured in the Mac App Store Best of 2012
Powerful
* Fast and accurate scanning algorithms
* Cleans iTunes and iPhoto libraries
* Works with external drives and network volumes
* Removes duplicate folders too!
Intelligent
* Auto Select all duplicates with one click
* Originals remain untouched
* An array of one-click, filter selection buttons
* Advanced contextual menu for power users
Gorgeous
* Beautifully crafted, Retina-compatible design
* Drag and drop files, folders, or entire drives
* Data chart shows you what needs cleaning
* Watch your duplicates technically shred to pieces
Flexible
* Sorting filters make scanning simple
* Control-click in Finder to select and scan
* Send duplicates to Trash or erase them completely
* Customizable select and ignore lists
* Built-in file preview mode makes selection easy
Requires OS X 10.7 or later
Home Page - http://macpaw.com/gemini