Want to know how you look? Use your iPhone

London: Want to know how ugly or good looking you are? A new iPhone application can tell you in moments.

The Ugly Meter app lets users take a photo of a person`s face and then "analyses" its contours in real-time before displaying a score out of 10. The higher the score, the uglier the face.

An on-screen grid helps the user line up the picture for best results and, moments after the picture is taken, the app`s caustic judgment is displayed on the screen.

And when tested on the faces of some of the world`s most glamorous celebrities, the results were a trifle controversial, a news daily reported.

In a head-to-head battle between fellow X-Factor judges Cheryl Cole and Dannii Minogue, it was the former Girls Aloud star who came out on top.

She scored a respectable 4.2 which prompted the acerbic put down: "Wow you`re ugly, is your doctor a vet?"

But Dannii fared even worse, scoring a terrible 9.8 out of ten and was told: "You`re so ugly, you could make a glass eye cry."

While it is obviously just a bit of fun, there are some who may take issue with the Ugly Meter`s judgment of curvaceous TV star Christina Hendricks.

Despite being the object of lust for millions of men across the world, the Mad Men actress` pale-faced beauty did not impress the gadget`s scanner as she scored an top `ugliness` score of 10 out of 10.

However the Ugly Meter was rather more complimentary about Angelina Jolie, who scored an almost-perfect two out of 10 which earned her the admiring phrase: "You`re so hot you make the sun jealous."

But there was bad news for her husband Brad Pitt, who was beaten by David Cameron. The British prime minister might not be everyone`s idea of a chisel-jawed hunk but he still managed to outpoint Brad by a single point.

The app costs 99p to download from Apple`s App Store and requires 5.5MB of free space on the iPhone to work.

It was developed by app designers The Dapper Gentlemen.