no genders?

i like this app a lot but the bmi is wrong. it doesnt take into account gender or age, and it says im on the underweight side of normal. this is VERY untrue. im 14, 56 1/2, and 125lbs. another app said i was right in the middle of normal and it took into account gender and age so im gonna trust it more

Namchuk about Target WEIGHT for TEENS (Personal Daily Weight & BMI Tracker exclusively designed for Teens)