YanTheCoach

YanTheCoach is a free, open-source app that allows anyone to easily obtain a complete health and body report. The aim is to be a simple, lightweight, free and powerful solution, and that's exactly what the app is. The result is instant, and it's reliable. The report is based on your height (in centimeters), your weight (in kilograms), your age, and your level of physical activity, and is 99.5% accurate.

Github: https://github.com/simplyYan/YanTheCoach