not ready for prime time
(I could not care less about the circular slide rule side of the E6B; 90% of the time, simple calculations with a cheap calculator does the trick, anyway).
That said, if the user has a good grasp of how to use an E6B and disregards the "digital output" of the app, in a world of electronic E6Bs and all-in-one flight computing, the wind vector side can be a "quaint" throwback to simpler times which can be useful for teaching the classic E6B, and allow the student/user to gain an understanding of the effects of wind on an aircraft's ground track. Because of that, well, I actually like it.







