Mike D. wrote:
Although this might be a bit late, I don't know that iFly will calibrate Stratus. Appareo/Stratus has their own free app, "Stratus Horizon Pro", that needs to be used to calibrate the Stratus.
When any AHRS device is attached to iFly GPS, we provide you the option to "Recalibrate to Level" and "Clear Calibration", so that iFly GPS provides a 2nd opportunity to calibrate your device, if needed. Ideally, you calibrate the actual device; but if you can't do this, iFly GPS allows you to correct the error.