However, it's good to take their ratings with more than a pinch of salt.
Kate Middleton was rated as less attractive than Kylie Jenner, and rated at just 'OK'.
Pippa Middleton beat her on this account, getting rated 'Hot'.
Her sister Kim (right) fared even worse with a 'Nice' rating, although the app thought the 34-year-old was five years younger at 29Caitlyn Jenner (left) was deemed just 'OK' although she had a massive 29 years shaved off her true age of 66.
Celebrity Big Brother contestant Gemma Collins (right) was rated 'Nice', but the app believed the 34-year-old reality star to be 53 years old The Duchess of Cambridge, 33, (left) got a 'Nice' rating and was labelled as being 35.
In other parts of the world the perception might be very different. Please only use our tool if you have reached adult age. "Have fun and don’t take the results too seriously." The Big Short, the film adaptation of Michael Lewis' book of the same name about the causes of the financial crisis, opens in UK cinemas this weekend.
They say in a statement on their website: "Please keep in mind the following points when using our tool: "Attractiveness is highly subjective and its perception differs from culture to culture.
"Our algorithm is trained on the pictures of the BLINQ community that is mainly based in Switzerland.
It sadly could not detect a face in any of the photos of myself that I uploaded - either I am too beautiful for the application to cope, or it can't detect a face in pictures where the user is in a group or not facing the camera head-on.
The app was kind about Nigella Lawson's age, estimating the 56-year-old to be 34. The app estimated the 18-year-old to be 20 and gave her the highest rating possible.