Anchor Sentry is an app to monitor the ship's position at anchor and inform the skipper when the anchor is dragging and thus the ship leaves the setup perimeter.

- Show current position on GoogleMaps map or Navionics map (To gain
access to Navionics maps from this application, users with an active Navionics
subscription in the Navionics Boating application must register with their Navionics
- Distance circles to help finding a good anchor position
- Drop anchor by tapping on map or by position or by bearing and distance
- Can be used for anchoring with shore lines by watching the heading rather than the position
- Tracks can be saves as GPX file for later processing
- Option to set up prohibited zones which will trigger an alert when entered. These can be used indepent of the anchor state
- Runs in the background even while other apps are used
- Unique sync functionality which allows to pair two or more devices together to see the ships position even while out to shore for dinner
- Barograph function included
- Display real echo sounder data from a providing NMEA server
- Optional compass overlay to help finding the bearing to the anchor
- Option to show current position visible to friends and family on the Anchor Sentry website
- Proximity alert between ships both using Anchor Sentry. To get warned when your neighbours anchor is dragging.
- Several setup options to customize your app

What’s New

Version 2.4.3

- A device can no longer be set to transmit while not anchored.
- Sending a device to receive while the device you anchored with is not already transmitting will automatically the anchoring device to transmit, provided it has the proximity alert active.
- Terminating the app for any reasons will now remove the device as active device from the server after 5 minutes.
- The receiver will now also show the transmission time of the data if it differs from the receiving time.
- General improvements on communication stability and recovery.
- Automatic screen locking can now be disabled in the settings.

App Privacy

The developer, Michael Dieter Konz, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like