From Adobe;
Photoshop.com Mobile for iPhone provides a fun, seamless experience to view photos with full-screen previews and edit images with gesture-based editing. Consumers can transform their photos with essential edits like crop, rotate and flip. Users can correct and play with color by adjusting the saturation and tint, enhancing the exposure and vibrancy and converting images to black and white.
Photoshop.com Mobile for iPhone also offers eye-catching special effects. The Sketch tool helps photos look like drawings, and Soft Focus can give photos a subtle blur for artistic effect. With just one click, users can also apply dramatic changes to the look and feel of their photos with effects such as Warm Vintage, Vignette and Pop. Edits or changes can be undone or redone so users can experiment without the worry of losing the original photo.
The Photoshop Mobile App comes with 2GB of space at Photoshop.com for free.
You can read more about it and download it from here.