Excellent App
This app has every calculation you can think of, and it also is smart. If you put parameters into one menu, it will remember them an use them for any other calculations that use the same parameters like wind, fuel flow, etc.
It has a favorites page so you can put all the things you use the most in one place. Very nice.
I wrote support because I needed to use a fairly uncommon calculation, and they replied and are incorporating it just for me! Support is top notch!
You will not regret purchasing this app and compared to some of the prices out there this one is very reasonable.
Solieus about
FlyBy E6B, v2.19