I then found and downloaded the free app Find!Color which works on similar principles but has turned it into a game with points. I can see how both would be useful - non competitive (color hunt), finding colours against a set time limit - good for teamwork and excitement (Find!Color)
Both apps are listed for iPhone but the demo video shows the app being used on an iPad and I had no issues using Find!Color on the iPad.
Would be interested to see what other people also think!
