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Getting started

Open the app and choose On the Boat. Tap Set Up Watch, pick the scenario that fits (anchored, mooring buoy, stern-to, etc.), and the app drops your anchor at the current GPS position. Adjust the allowed distance and the alarm is armed.

Watching from a second device

On the boat device, open Settings → Sync with Other Devices to get a short share code. On the other phone, choose Monitoring Remotely and enter (or scan) the code. The monitor sees the live position and gets the same drag alarm - even when its app is in the background.

The alarm won't make a sound

The alarm is designed to override the silent switch, but it still plays at your device volume. Turn the volume up - Settings shows a live volume meter and warns if it's too low. You can also send a Test Alert from Settings to confirm notifications reach your monitoring device.

External GPS (Bluetooth / chartplotter / Signal K)

Under Settings → GPS Sources you can connect a Bluetooth GPS, an NMEA 0183 source over TCP/UDP, or a Signal K server. In Auto mode the app uses whichever connected source reports the best accuracy.

Battery

The app eases off GPS while the boat is holding and sharpens up near the edge of the zone or while dragging. Keep the device charging overnight for an all-night watch.