“Cameras add additional weight to photos and when you’re taking a selfie you’re also dealing with bad lighting, angles, close-ups and a lot of other factors that make people complain that the photo isn’t an accurate representation of themselves,” said Susan Green, co-founder of the Phoenix-based company Pretty Smart Women that created the app. It was originally designed to help overweight adults show a leaner version of themselves, but Robin J Phillips, the other co-founder, said the app has also motivated people to lose weight. But some critics fear the $1.99 app, which only works on single head shots, could encourage an unhealthy body image. Lauren Dickson, a social worker in the eating disorders and addiction clinic at the Center of Addiction and Mental Health in Toronto, said the app is one of many factors that could contribute towards a young adult developing an eating disorder.