Mill Colour

Edit the look of your photos, and use RGB filters to edit the colors

Mill Colour is a color editing application, and that alone. It doesn't feature flipping, rotating or cropping like Adobe's Photoshop.com Mobile. However, it does have great color features.

The iPhone takes surprisingly good pictures for a relatively low resolution camera, but the native camera application doesn't feature any editing tools.

You can choose either to edit a picture on your camera roll, or take a new one, and then Mill Colour gives you two main options. You can choose a 'Look' to give your image, or manually edit the colors. The looks in Mill Colour range from 70s, to instant camera-style and all give images a very different feel. They are also much subtler than the equivalents in Photoshop.

Mill Colour's color editor allows you to edit the Lift, Gamma, Gain or Saturation. Each of these can be altered by Red, Green and Blue filters or all together. This gives you a lot of subtlety and control, although it takes some practice to get the hang of it. Thankfully results appear in real time so you can see what you're changing.

Mill Colour is a neat application, although some users may prefer the effects like vignetting that other apps offer. However, for changing color values alone, Mill Colour is really effective.