What do you look for in an app? It might be something useful that helps to organise your life, it might be to connect with friends and family, or perhaps it’s a diverting game to while away the daily commute. But would you ever look for art on the App Store? Stepping beyond the gallery, artists have been making fruitful use of the medium for some time now to produce a range of art apps that do the kind of things art is supposed to do: entertain, inspire, confound and provoke. Here’s a guide to ten of the best.