Parfait - Take a sequence of photos to get the perfect photo
Zombocam - Filters and effects for your webcam
Stackables - Advanced and comprehensive effects layering and blending app
Scary Camera Effects - Creepy and artistic photo manipulation, 20+ filters
Duotone - Convert any photo to a duotone in seconds
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.