View and navigate nautical charts using S57 vector data. Plot courses, measure distances, and track positions. Display depth contours and navigational aids. Save and share route logs. Adjust chart scale and orientation.
Display a compass overlay on the map. Navigate with turn-by-turn directions. Show current speed, altitude, and heading. Indicate device orientation with a level feature.
Calculate distance and heading along great circle.
The app calculates distance and heading along the great circle between two positions. It uses GPS for the start position or allows own input, and provides GPS speed and course.
