Worldwide offline charts. Your position, course and speed at the helm. Live ship traffic, wind and sea, and an anchor watch that wakes you. No signal required.
A worldwide nautical chart we render ourselves from OpenStreetMap data. Download your sea before you leave and it keeps drawing when the phone has no service at all.
AIS vessels around you, coloured by type, with name, speed and heading. Free, not a paid add-on.
Set the swing circle and sleep. If the boat drags, the alarm sounds even with the phone locked and the ringer on silent.
See the captains you sail with, wherever they are. Strangers only ever see an anonymous boat, and only if you choose to share.
Forecast arrows you can scrub forward hour by hour, plus gusts, temperature and wave height at any point you tap.
Drop waypoints, get distance, bearing and ETA at your real speed. Every voyage is logged and exports as a standard GPX file.
Everything above stays free. Premium adds charts, it does not take features away.
High-resolution imagery for reading an unfamiliar anchorage or a shallow entrance before you commit to it.
Traffic separation schemes: the shipping lanes and their separation zones, drawn on your chart.
Draw a start line, marks and a finish, then share it as a link. Anyone can join and sail your course for free.
$149.99 per year Family Sharing included: one subscription covers the whole crew.