–!This is the light version. The other version contains the health tracking, it will add your weight and BMI to a graph and you can see how you are loosing weight!–This application has calculators to calculate you and your friends BMI and Body fat.The types of Body fat calculators are:-YMCA.-BMI.-Advanced.If you have any suggestions what to add next, please e-mail me and I will do it as fast as I can.