For the record in regards to the link to that 'attractiveness' app I posted, that thing goes solely on proportions and symmetry and what is generally said to be 'ideal'.
I personally think that has little to do with beauty. I put in some people I found extremely attractive and many of them got low ratings. It has nothing to do with numbers in my opinion. You can't sum up a person with a number.
I know someone on tumblr posted a screenshot of what it told her, she got a rating of 4, and she was extremely gorgeous. (and extremely pissed lol)
I only found it interesting in relation to the differences between 'attractive' male/female characteristics/ideals XD
Also yea, I got different levels of maleness for different photos, funny. Some of the least 'male' ones to the app looked the most manly to me lol XDDD None went higher than 79% though.