With this app you can identify with a few clicks, your personal BMI (Body Mass Index) and thus check how it is to your health.
You will also find many informative definitions in the app around the body mass index and all the different weight stages, from severely underweight to obese. These definitions can lead you into expert concepts in mind, in exactly what situation you are currently, how you react to it and must act in the future.
Also, this app in German, as offered in English.