MastersMate

Master's Mate is a free, all-in-one platform that brings your whole boat into one app — for cruising sailors, by cruising sailors. ⚓🌊

Monitor your vessel from anywhere: live boat telemetry over NMEA 2000 (wind, depth, speed, heading, position), battery & electrical monitoring, onboard cameras, and a real-time HUD — streamed off the boat over a secure link that buffers through internet dropouts, so you never lose data.

Navigate with charts, weather routing, passage planning, tracks and a digital logbook. Stay aware with AIS collision tracking and a 570,000-vessel directory.

Stay safe with the Master's Mate Safety Initiative Network (MMSIn): anchor-drag & distress alerts, man-overboard, and boat-to-boat hailing — cruisers keeping each other safe.

This channel walks you through it all, feature by feature.

Our promise: never charge for safety, never sell your data, never run ads. Free stays free.

Free on 🌐 mastersmate.com