Anchor Alarm keeps watch while you relax.
The app alerts you instantly if your boat drifts outside the anchoring area you define — helping you stay safe and sleep better at anchor.
Key Features
• Drift Notifications: Get instant alerts when your boat moves beyond your safe zone.
• Custom Polygon Area: Define an accurate polygon-shaped anchoring zone based on the specific layout of the anchorage. Perfect for complex shorelines, crowded bays, or irregular holding areas.
• Share Settings Between Devices: Transfer your anchor position and defined area to another device using a QR code (Requires internet connection only for sharing — not for normal operation).
Works Fully Offline
Anchor monitoring works without internet access. Ideal for remote anchorages.
No Registration Needed
No account, no cloud storage — your data stays on your device.
Permissions
Learn how Anchor Alarm uses app permissions:
Support & Feedback
If the app crashes or behaves unexpectedly, please report the issue or email us at
Your feedback is greatly appreciated and helps us improve.
More information: Anchor drift alarm with alerts when your boat moves outside your safe zone.