Calculate Course to Steer and Speed over Ground using heading, boat speed, current set, and drift. Input Magnetic Variation for True and Magnetic compass readings. Visualize heading, current vector, and course on a 360º compass.
by Richard Craddock★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06
Access vector and raster for . Create or import GPX/KML routes. Use voice prompts for route guidance. View tide and current predictions. Rotate with text remaining upright. Supports chart course orientation.
Displays current direction with a clear, minimal interface. Taps to reset orientation. Adjusts for magnetic declination automatically. Offers calibration and tilt sensitivity settings. Syncs with device sensors for accurate readings.
Monitor location, heading, pressure, temperature, altitude, speed, distance, and elapsed time in real-time. Track trips, share routes, and receive comprehensive built-in instructions. Customize settings and view data on a large, easy-to-read display.
Track location, speed, altitude, and heading using built-in GPS. Customize with widgets for quick access. View real-time movement data and adjust settings for navigation.
Weather provides real-time data including SOG, COG, VMC, HDG, TWS, AWS, ETAs, ETWs, and AIS. Integrates weather forecasts and calculations. Stores charts for offline use. Switches to night mode after sunset. Shares data with other devices via wifi.
Monitor CPU frequency and reduction details. View real-time CPU performance metrics. Check screen resolution and size. Display battery design capacity. Track network IP and speed. Identify GPU type and extensions.
Navigate using a or true . Set direction references and adjust settings. Track altitude and barometric pressure changes. Measure electrical fields with the teslameter. Use the flashlight and Morse code transmitter for signaling.
Displays real-time tidal stream data based on the nearest Devonport high water time. Shows hourly streams charts valid for specific periods. Allows users to view tide set and interpolated rates. Functions fully offline without internet connection.
Track speed, distance, altitude, and heading using GPS. View latitude and longitude coordinates. Monitor sunrise and sunset times. Record acceleration data. Save journey logs for later review. Share trip details via email or social media.
Detects ferrous objects behind walls using phone's magnetic sensor. Measures magnetic field variations in microteslas. Displays real-time readings and highlights deviations from baseline.
Measure distances and angles using a rangefinder and inclinometer. View GPS coordinates and map overlays. Take geo-tagged photos and videos. Use a compass and navigation calculator for orientation and route planning.
Displays current location, altitude, ground speed, and course on a map. Navigate back to launch point or set waypoints. Records flight data and allows playback of flight logs. Syncs with Apple Watch for real-time tracking.
Detects hidden cameras using network scans, flash illumination with a red filter, Bluetooth scanning, and magnetic sensor detection. Alerts users to potential surveillance devices in environments like hotels or bathrooms.
Control microphone settings and adjust beam direction for optimal listening. Change microphone mode, mute or unmute the device. Check battery level and current mode. Compatible with Roger On™, Roger On™ iN, and Roger On™ 3 devices.