New app reveals painting's past with a swipe[ Sat, 27 Apr 2013 18:53:54 GMT ]A new app for iPhones and iPads lets art viewers see the path a painting took from sketches to completion, from any angle. Repentir, a free app developed by researchers in the United Kingdom's Newcastle University and Northumbria University, works so far with only one painting. But the developers say that the technology could soon be applied to many new paintings, and maybe even old ones. "Wha...