Charts & satellite
Real nautical charts and high-resolution satellite imagery over the actual bathymetry.
Marine chart plotter for cruising sailors
Seabearing A physics-based anchor heatmap, tide prediction, and depth alarm.
A full chart plotter — charts, satellite, course, tracks, offline. The anchor heatmap models your boat's swing and holding at every spot and tide. The depth alarm triggers on the distance you'd need to stop before you ground.
- Charts & satellite
- Live speed & depth
- Real tides
- Works offline
What it does
Built on real bathymetry and your boat's own geometry — not a generic chart with a depth number stuck on top.
Course & live data
Your heading projected ahead, with live speed and depth in the corner.
Tracks
Always recording in the background — backdate up to 24 hours to recover a passage you forgot to start.
Tide prediction
Harmonic tide prediction folded into every sounding and the heatmap — the water you'll have now and across your stay, not at chart datum.
Crew link
Pair bow and helm phones for shared live position, hands-free voice, and synced alarms.
Anchor heatmap & depth alarm
A physics-based heatmap scores every spot for your boat — swing, holding, seabed, and tide. The physics-based depth alarm warns by the distance you'd need to stop; a drag alarm watches once you're set.
Plus offline regions you can download before you cast off, and distance & anchor-circle measuring tools.
See it work
A two-minute walkthrough.