Scary Camera Effects - Creepy and artistic photo manipulation, 20+ filters
Bitpoem - Amazing effects and textures for your photos
Duotone - Convert any photo to a duotone in seconds
Stackables - Advanced and comprehensive effects layering and blending app
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.