Horizontal Pro
This app’s attitude indicator incorrectly showing the bank. It seems there is no way to “calibrate” the attitude indicator to compensate the iphone’s orientation. Given that, not sure why this app was developed.
App needs a lot of help
Compass is very inaccurate, device needs to be set at about 30 degrees from horizontal for artificial horizon to read straight and level, altimeter shows device is at sea level rather than actual 3400 ft ASL, VSI is all over the map unless device is lying on a flat stable surface. No idea if the “air speed indicator” works or not. Too bad this app doesn’t work; the graphics look real good.
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Not working correctly
Heading has about 90 degrees error, vertical speed needle vibrates a lot