Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
PixBuilder - Free Photo Editing Software for PC
Retrica - Discover yourself with Retrica
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
360 Camera - Capture 360 photos and videos with your Android device, 360 Camera is one of the most leading camera apps that allows you to enjoy all in one photography experience.
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.