Adobe photoshop is one the best commercial photo editing and design app. Developed by Adobe Systems
License: Commercial
Apps available for Mac OS X Windows
PhoXo is a free and powerful image editing software. Developed by Fu Li
License: Open Source
Apps available for Windows
PhoXo is a free, lightweight alternative to Adobe Photoshop, suitable for basic photo editing tasks, while Photoshop offers a comprehensive suite of advanced tools and features for professional use.