A-EFIS Pro vs MyVario Usage & Stats

A-EFIS is an Electronic Flight Information System for airplanes, which runs right on your iPhone/iPad. A-EFIS works perfectly with the internal sensors of your iPhone/iPad A-EFIS makes use of digital filtering methods and state-of-the-art stochastic models in order to achieve exceptional accuracy and robustness. ATTENTION: A-EFIS ONLY WORKS ON AIRPLANES. NOT TO BE USED IN HELICOPTERS OR LAND VEHICLES BECAUSE INDICATIONS WILL NOT BE CORRECT. USE ONLY IN AN AIRPLANE! Features: - Artificial Horizon (AHRS) - Ground speed (via GPS) - Altimeter (via GPS) - Vertical speed (via GPS) - Turn coordinator - Slip ball - Compass - True course indicator (via GPS) - Deviation from true track indication A-EFIS can also be used with the X-Plane flight simulator. A-EFIS has been extensively tested on ultralights, LSA, general aviation and even airliners. IMPORTANT NOTICE: A-EFIS is not a certified aviation instrument. Do not rely on A-EFIS as your only navigation aid. Failure to comply to this warning may result in property damage, serious injury or death. You assume total responsibility and risk associated with using this application.

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MyVario

MyVario is a simple-to-use app that displays altitude and vertical speed in a format that all pilots understand. Human factors was important in the development of this app. The altitude (above mean sea level) is calculated by using filtered GPS data. The variometer uses the change in altitude over time to calculate vertical speed (in knots). A Kalman Filter has been tuned and is used to smooth the variometer presentation. You should find the variometer to be smooth but responsive enough to show small rates of climb or descent. As with commercial variometers, the user can set the sensitivity. MyVario also includes a Test mode that shows varying altitude and vertical speed. This is handy for becoming familiar with the instrumentation or simply demonstrating the app to others. As with all portable electronic devices, MyVario should never be used as a substitute for approved cockpit instrumentation. Under rare circumstances, the altitude my be off. This could be due to poor GPS reception or a failure of the hardware or software.