Half-baked idea

This is the example of what happens when somebody puts together an app and does not do enough troubleshooting.
I got the free version of the app.
1. it does NOT calculate BMI correctly
2. You can input ONE set of values and then you CANNOT do any other calculation.
Please address the issues!

iargh about BMI 3D (3D Body Mass Index Rechner), v3.5