I am a certified flight instructor and have attempted to use this application for many years. With each update Im optimistic that the developers have corrected the profoundly dangerous bugs in this app. Unfortunately the developers do not understand the difference between desired track, and bearing. This app might be adequate for wandering around VFR but should never be used for actual flight. The CDI on the HSI does NOT set up for DTK (desired track) or course. The app uses some undecipherable logic to point aimlessly. Please dont take my word for this, rather, spend your money, buy the app and try to follow a preplanned route using the HSI. If you live in mountainous terrain, as I do, be sure you have adequate insurance.
I teach Advanced Avionics in technically advanced aircraft, if Im missing something, which of course I might be, its hard to imagine that other pilots wont miss the same thing.This app offers a number of unique features not found in any of the other EFB aviation apps. Unfortunately it remains too bug-ridden to recommend to any serious pilots. As stated, when following a route, the HSI continues to auto adjust the OBS to completely erroneous courses, (i.e. true not magnetic?). Yes, I have set up "magnetic" in settings. Do any pilots fly true headings? This app is definitely not ready for prime time and should NOT be used while airborne. That being said, the developers are slowly creating a product that once out of beta should provide a competitive product.