The app provides a reference guide to symbols on electronic nautical charts specified by the International Hydrographic Organization. It includes a searchable index and hi-res graphics with a tap-to-enlarge feature for detail.
The app functions as a speedometer and accelerometer, displaying speed ranges with background colors. Users can toggle between mph and km/h and enlarge the accelerator display.
Navigation "Display current location and direction. Find nearby metro or Cycle Hire stations. Store and return to saved positions. Locate restaurants, bars, and museums. Provide maps and navigation guidance."
The app provides tools for amateur radio operators and RF hobbyists. It offers antenna-length calculators, frequency-to-wavelength conversion, VSWR and ERP calculators, and signal utilities for DTMF and Morse code.
The app provides map display for land and sea with multiple map layers including OpenStreetMap and Apple Maps imagery. It offers features like offline map data, places of interest search, and waypoint management with GPX file support.