Anchor Alarm / Watch 4+

The anchor watch for your boat

w+h GmbH

    • 4.7 • 543 Ratings
    • Free
    • Offers In-App Purchases



Anchor Alarm - The anchor guard for your boat
Get alerted as soon as your ship aborts.

Set the radius and click on Start to start the anchor alarm.
As soon as your ship leaves the radius, your device alerts you with an unmistakable alarm tone.
In addition, you can move the monitored area and correct it to the nearest meter.
The location history of the boat is recorded and can be seen from the small points.

With our remote monitoring feature, you can connect two devices together.
The sender remains on the boat while you are on land.
As soon as the sender leaves the area you will be alerted on the way.
(stable internet connection required)

With our anchorage search, you can search for anchorages in your area where other crews have anchored before. Try this module for free for 3 days!

You are already planning your next vacation?
Then you can request your next yacht charter directly from the app.
In 3 steps we will send your yacht charter request to selected agencies.

Terms of Use:
See our FAQ page at for help.

What’s New

Version 1.13.5

Bugfixes and performance improvements

Ratings and Reviews

4.7 out of 5
543 Ratings

543 Ratings

Ashmede ,

Good nights sleep

I used the app every night with the Leopard 4000 between Antigua and Barbuda. It is simple and intuitive to use, easy to adjust, and works consistently as your GPS signal which was usually 6 feet. Slept better on board than I do at home with the security of this app

agapemike ,

Simple to use, but doesn’t stay on.

I love the simplicity. However, the app does not get priority in the iOS to stay functional when other programs are running. Several of the past days it has been running as expected, then when returning to check on the anchor track after being on other programs, the track is gone and I need to place the marker and guess where the anchor is on the map and adjust over time as the boat moves. Not a good thing when you want to go to sleep.

Thfsvnknbf ,

Works good

Wish alarm was louder when triggered but it’s on a phone sooooo…

App Privacy

The developer, w+h GmbH, 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 Linked to You

The following data may be collected and linked to your identity:

  • Location
  • User Content
  • Identifiers

Data Not Linked to You

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

  • Usage Data
  • Diagnostics

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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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