Heather Davies

Sail Tools collects a variety of instruments of interest to sailors and boaters into a single app. These instruments are:Dashboard - provides a compas …

Triangulex Triangulex uses the magnetic compass to take multiple sightings of a distant object to triangulate its position. Once two sightings of the …

Calipex measures distances, bearings, and areas on maps. Press and hold a location on the map to drop your first pin. You will see information about t …

Upwind indicates your speed towards a distant mark without requiring you to know the exact position of that mark or how far away it is. It does this b …