With this application you’ll know how good your body fat content. You can find out if it is above or below the weight recommended by WHO.
The Body Adiposity Index (BAI) is a new method to measure the amount of fat in the body proposed by the team physiologist Richard Bergman, University of Southern California (Los Angeles), published in March 2011 the journal Obesity.
The height and extent of the hips of an individual is used to point out who is above or below the ideal weight. The greater the circumference of the hips, the greater the change of the same being overweight.

http://itunes.apple.com/nl/app/bmi-bai-calculator/id428844286