Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Manual Camera for iPhone - Custom exposure for your iPhone camera
GIMP - GIMP is a multiplatform photo manipulation tool.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Priime - Edit photos with the styles of the world's top photographers. Smart suggestions, fast editing, and inspiring collections.