A vs Nav Tools

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.

The Nav Tools app is a mobile navigation toolbox for air and watercrafts which is always at hand on your iPhone. It uses full power of device’s internal sensors data (gyroscope, accelerometer and magnetometer) along with GNSS information for calculating all navigation parameters what provides very high update rate, instant response and indication smoothness. With Nav Tools app you can: - Display main navigation information including heading (based on GNSS course / magnetic heading / true magnetic heading), ground speed, altitude, coordinates, navigation session statistics (total time, moving time, passed distance, average speed, distance to start point) and destination point navigation parameters (distance, azimuth, course, reach time); - Display various times (system time, local time, UTC time) and launch different timers (count up, count down, count down with auto repeat); - Switch between various units of displayed parameters; - Search and save POIs (destination points) for fast access navigation (multiple search options are available); - Activate navigation back to start point by pressing just one button; - Enable multiple virtual screens and select which indicators to display on each screen. Switching between screens is made by simple swipe; - Perform adjustment of indicators appearance to make them fully correspond to your needs. List of indicators: - Multi parameter indicator (ground speed / altitude / heading); - Heading indicator (with indication of direction to destination point); - Chronometer (with multiple time display modes and timers); - Navigation session info indicator; - GNSS info indicator; - Device status info indicator; - Destination point navigation info indicator.