Anchor Alert by PredictWind redefines anchoring safety with intelligent, remote monitoring that connects directly to your boat's instruments. Unlike other apps that rely on phone GPS or require you to stay aboard, Anchor Alert provides reliable protection—anytime, anywhere.
Why Anchor Alert is Different
Remote Monitoring
Stay informed even when ashore. Get instant alerts to your phone if your boat moves, the wind picks up, or the depth changes.
Connected to Your Boat’s Instruments
Uses your onboard GPS, wind, and depth sensors via the PredictWind DataHub for high-precision monitoring—far more accurate than phone GPS.
Real-Time NMEA 2000 Data
The only app that integrates real-time NMEA 2000 data with smart alerts, thanks to the PredictWind DataHub.
Built for Serious Cruisers
Developed by sailors, for sailors. The app was created in Auckland by Ocean Race offshore sailor Keryn McMaster and America’s Cup meteorologist Jon Bilger, delivering real-world functionality and innovation.
Smart Alerts
Instant alarms if your boat drags anchor, swings excessively, or if wind or depth thresholds are exceeded.
Reliable Ashore or Aboard
Most anchor alarms only work onboard. Anchor Alert keeps watch when you can’t go ashore with peace of mind.
Free and Premium Plans
Choose a free basic mode or upgrade for advanced features, including custom alarm zones, historical tracks, and longer data retention.
Important Update: Anchor Alert Pro is included in your PredictWind Professional subscription, which is a great reason to upgrade now if you haven't already.
Backed by PredictWind
From the global leader in marine weather and routing, trusted by offshore sailors around the world.
Download the Anchor Alert here and set it up here: Anchor Alert Setup.