Dupa cum sugereaza numele programului,
este un program Open Source si este gratuit.
Hartile nu sunt gratuite, dar gasiti pe internet harti gratuite sau contra-cost.
"OpenCPN is a concise and robust Chart Plotter Navigating software program. It is designed to be used at the helm station of your boat while underway, allowing you to easily chart a course and track your position right from your laptop. And its free."
Eu l-am instalat pe linux, de proba. Iata cum arata o captura: