Anchor Alert

44 reviews
Content rating
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About this app


Anchor Alert is an advanced anchor alarm application made in New Zealand by a professional software developer and MCA certified Yachtmaster. It was the first anchor alarm available for Android devices and remains the number one choice of serious boaters. It uses a unique anchor projection algorithm which automatically takes into account the magnetic-declination of your location to more accurately set the anchor watch point. It has a clutter-free interface and runs fully off-line (after initial verification). It has been designed primarily to maximise reliability and battery life while allowing the user the greatest degree of flexibility and customisation possible.

Some of Anchor Alerts features:
- unique anchor projection system, just point and click and your anchor position is set
- user defined swing area with 'touch-to-set' exclusion and slack zones
- very low memory usage and the longest battery life in its class
- can be set to run completely in the background while you use your phone / tablet for other things
- silent or audible alarms, with or without vibration
- vessel tracking, historic location traces and more

If you want the best anchor alarm / anchor watch for Android, you want Anchor Alert.

See for a full run-down of features.

** GPS accuracy and performance depends on your phone's hardware. Please read the help page fully and make sure you understand how to tell if the anchor alarm is running in the background and how to completely stop it.

Finally, please email me and let me know how I can make this anchor alarm / anchor watch app better before leaving negative reviews. My goal is a 5 star rating from everyone that buys this app, please help me achieve this!
Updated on
May 27, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
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44 reviews
Simon Jenkins
July 18, 2022
Good so far, even though it is relatively easy to use it would be nice to have a youtube tutorial.
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Miss Rita
September 10, 2020
I have not used in awhile I updated but when I hit agree button it goes to my settings for WiFi. ..what has gone bad. My gps and location is on. I cannot get access to it on my android tablet. It will not open the anchor alert settings at all. I paid for it and now not working after a year of no use.
1 person found this review helpful
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SlimJiM Software
October 1, 2020
Starting with Android 11 Anchor Alert can no longer automatically open the overlay permissions screen, when it tries Android instead opens the general settings page, this is what you are seeing. You will need to allow overlay for the alert screen to work. Please contact me via e-mail at so I can provide more help.
A Google user
September 16, 2019
Excelente .
3 people found this review helpful
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What's new

Update to target latest Android version