Petapixel:

While Adobe provides an excellent range of products, some photographers are looking to expand their horizon with more affordable alternatives.

Emulsion is described as a 3rd party photo cataloging software designed to replace Apple’s in-house Aperture photo editing and management program.

For $50 you can pick up Emulsion, which allows non-destructive editing, metadata manipulation, photo organization, and more. A free thirty-day trial is also available for those who would like to give the software a thorough run before purchasing. Current requirements for Emulsion include Mac OS X Yosemite and 4 GB of RAM.

As the review points out, if you’re already a Lightroom user, this app isn’t any better. But, if you don’t need all the features of Lightroom, Emulsion looks like a good alternative.