Your SeaMate.
Offline NOAA charts, built-in AI captain, MOB, distress tools, anchor watch, weather, fishing, and more.
Built by a retired Coast Guard SAR pilot
Offline NOAA charts, built-in AI captain, MOB, distress tools, anchor watch, weather, fishing, and more.
Built by a retired Coast Guard SAR pilot
Download your region before you leave the dock. SeaMate works without cell service — because the water doesn't care about your signal.
Ask anything. Tides, weather windows, departure timing, navigation questions. Your built-in AI answers with your actual conditions — not generic advice.
MAYDAY script auto-filled with your vessel name and live GPS. USCG sector contacts, VHF channel reference, SAR procedures, and a 911 button. Ready when seconds matter.
One tap. Return heading, distance to mark, elapsed time in water, and a pre-filled MAYDAY script — instant.
Set your radius. Get alerted the moment you drag. Real-time drift display and HOLD/DRAG status so you can sleep easy.
NOAA marine forecasts and 24-hour wind outlook, always current and positioned to your location.
Drop waypoints directly on the chart. Distance and bearing for every leg. Point-to-point navigation built in.
Solunar tables, moon phase rating, and in-season species by region. Know the best feeding windows before you leave the dock.
GPS-stamped, time-stamped entries automatically tied to your position. Your complete captain's log, always.
Pre-departure, cast off, anchoring, and storm prep — built for real mariners, not an afterthought.
SeaMate was built by a retired Coast Guard search and rescue pilot. He knows what goes wrong on the water. He knows what information you need and when you need it. SeaMate is the app that didn't exist.
Questions, feedback, or something not working right — reach out directly.
support@risleetree.com