An app that scans people's faces and gives them an 'ugliness' rating has stirred debate in the US, with some parents children should be protected from it.
The 'Ugly Meter' was created by developer Jo Overline, who says it was only supposed to be entertaining, not insulting.
It was rated the top app in Apple's virtual store for several weeks, Overline says.
A tagline on the product reads:
"When your friends won't tell you the truth, Ugly Meter will."
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However, some parents are outraged by the app, and worried about the impact it may have on children who could take its assessment of them seriously, or use it to insult others.
"It's hard enough being a kid," one mother told CNN.
