
NGA - Anchor Alarm
Anchor watch for sailors
0 ratings
Free
Rating summary
About
The app interface is in English.
NGA means Not Going Anywhere. It is a practical anchor alarm for sailors.
Set an anchor point and swing radius. NGA follows the boat's GPS position during an active watch and can sound a local alarm when drift is confirmed.
Set the watch
- Set the anchor point from your position or reposition it on the map.
- Choose a radius by hand or use the scope calculator.
- Use a swing arc for a restricted anchorage.
Watch the position
- See distance from the anchor, GPS accuracy and the age of the last fix.
- View the swing trail on a standard or satellite map.
- Check the return-to-anchor bearing.
- Review past watches, drift graphs and GPX exports.
Other screens
- View watch status on Apple Watch.
- Check distance and status in a Live Activity on the Lock Screen and Dynamic Island.
- Optional remote watch shares status between your own devices through your private iCloud. It is off by default.
Privacy
No app account, ads or analytics. Local monitoring does not require remote watch. Anchor history is stored on-device; remote watch uses your private iCloud when enabled.
NGA uses background location while a watch is active and audio for the alarm. GPS reception, permissions, battery and system settings can affect monitoring and alerts.
Privacy policy: https://pelagiclabs.io/privacy/nga
Terms: https://pelagiclabs.io/privacy/nga/terms
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What's New in NGA
1.0.1
October 25, 2026
Redesigned anchor setup and watch screens. - Clearer distance, GPS status and fix age on iPhone, iPad, Apple Watch, widgets and the Lock Screen. - Fixes for snooze recovery, interrupted alarms and restoring an active watch. - Stale GPS warnings and safer watch controls. - Improved remote alarm retry and delivery through private iCloud.
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