Advanced anchor watch manager for Signal K — drift/AIS/grounding alarms, shelter forecast, IHM Spain tides, multi-device, offline MBTiles
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Updated
Jul 6, 2026 - HTML
Advanced anchor watch manager for Signal K — drift/AIS/grounding alarms, shelter forecast, IHM Spain tides, multi-device, offline MBTiles
A modern, reliable anchor alarm that monitors boat drift.
Boat Knot Meter: Anchor Watch — iPhone GPS knot meter for sailors and boaters. SOG, COG, anchor watch drift alarm, no-wake alarm, GPX export, 0.1-knot precision. Zero ads, zero accounts, fully offline once GPS locks.
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