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Differ lets you compare the contents of two directories simply and visually. This is especially helpful in using Xcode; you will often need to compare your current project with the previous version when testing or narrowing down the cause of a bug. The difference between two revisions can be created by command line, but this is not a useful way to compare projects.

Differ simply presents comparison result of two directories by drag-and-dropping. It allows you to compare projects without a version control system. And you can open files in FileMerge by double-clicking.

What's New

Version 1.3.2:
  • Optimized for OS X 10.10 Yosemite
  • Added the button for swapping the left and right project


  • OS X 10.9 or later

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Differ User Discussion


Current Version (1.x)


Downloads 212
Version Downloads 115
License Commercial
Date 10 Feb 2015
Platform Intel 64 / OS X
Price $1.99
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