Priime - Edit photos with the styles of the world's top photographers. Smart suggestions, fast editing, and inspiring collections.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Filters for iPhone - Transform your photos. 800+ filters and effects. Just 99¢.
GIMP - GIMP is a multiplatform photo manipulation tool.
Dubble - Take a picture and randomly mix it with anyone in the world
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.