Note: Keep device plugged in & browser open.
Disclaimer: Use at your own risk. This tool is a pure assistance function and does not replace good seamanship, anchor watches or professional navigation equipment. No guarantee for availability or flawless alerting.
Privacy: 100% anonymous. This app does not store or transmit any GPS coordinates to the server. Only the calculated distance and direction are temporarily processed.
Progressive Web App (PWA): You can install this app directly on your home screen (e.g. via "Add to Home Screen" in Safari on iOS or Chrome on Android). Once installed, it runs in standalone fullscreen mode like a native app. Thanks to built-in offline technology (Service Worker), all essential files are cached on your device, allowing you to launch and run the boat's watch even in remote bays with absolutely no network coverage.
Imprint: Hauke, Wellenweg GbR