How to Use: Set your Static Boat Draft slider on the left panel (e.g. 2.0m) and tap points on the map. Click "Compute Mesh Route" to draw a safe path.

The Moat: Garmin recalculates routes slowly on physical chips. TerraMar splits global charts into lightweight H3 snippets, solving routing grids completely offline on your device in milliseconds—saving you 100% on server billing.

How to Use: Right-click or long-press anywhere on the map to trigger "Deploy Intel Beacon". Select Hazard (Red) or Fauna (Green), write a 3-word description, and hit Broadcast.

The Moat: Navionics/Garmin community logs are delayed by corporate verification loops. TerraMar hazard alerts are live instantly, syncing directly to every user within a 10-mile radius in real-time.

How to Use: Enter up to 5 comma-separated emergency cell phone numbers inside the SMS Guard input. Toggle Anchor Drift Alarms, and click "Send Test Alert".

The Moat: Standard alarms make noise locally on-screen. TerraMar dispatches real-world, concurrent SMS alarms to your entire crew over satellite relays if your anchor breaks loose.

How to Use: Click "Calibrate Compass" or tap directly on the Compass tape HUD to request browser permission. On desktop Safari, click and drag to rotate the map and watch the compass rotate dynamically.

The Moat: Replaces expensive $1,500 dedicated compasses and altimeters, turning standard smartphone sensors into highly-responsive, Kalman-filtered navigation tools.