This is a Mac OS X app that looks and behaves very much like its iOS sibling.
So not only is Photos for Mac made to replace the two ends of Apple's photo editing lineup-pro and consumer-it's also built to create a more seamless workflow between your iPhone, your desktop, and your iCloud storage account.
It was slated to debut with OS X Yosemite in early 2015, where it would replace iPhoto, the Mac desktop's default consumer photo editing application, and also Aperture, Apple's pro photo application for the Mac which the company has killed off. Onstage at WWDC last June, Apple demonstrated a new photo management and editing app called Photos for Mac.