Free for iPhone and iPad
Picking a colour by holding up tiny samples against a wall is tricky.
This app makes it simple and lets you get on with the job of painting without a colour-choice hangover.
Upload an image of the room, then paint it virtually to see how the colour works.
You have access to 15 brand-name colours, but for the full range of 30,000 from 35 brands, it will cost you $3.