If you want to make the most of the photos you have taken with your iPhone, Mill Colour may just be the tool you have been looking for. This free app makes it possible to apply a range of special effects and filters to your images to transform them into eye-catching masterpieces.

There are a number of pre-defined 'looks', or filters, built into the app, and these can be used to give your images a particular look and feel. You can give your photos an aged look by applying the chocolate filter, or mimic Polaroids with the Instant filter.

You also have the option of adjusting colour controls manually. Working in this mode you can take control of lift, gamma, gain and saturation settings to create a completely unique look for your images.

The images you create can be saved to your photo library, leaving the original intact.

What's New in Version 1.2

- Fixed a bug where a white line would appear in the right side of an image
- Improved the maximum editable resolution for more recent hardware
- Added a Retina Display app icon