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Anchor Alarm with Late Set

by B2N LTD

iPhone · iPad

Active Last checked 31 Jul 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • Free to download
  • In-app purchases

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Family Sharing Yes Unknown App Store Store published
Free app Yes Free Store published
In-app purchases Yes Limited free Store published

Screens

App Store

20 store screenshots

Anchor Alarm with Late Set ipad screenshot 1
Anchor Alarm with Late Set ipad screenshot 2
Anchor Alarm with Late Set ipad screenshot 3
Anchor Alarm with Late Set ipad screenshot 4

Pricing & paywalls

App Store

  • Free to download
  • In-app purchases

Ratings & reviews

App Store

4.6 394 ratings · App Store

  1. 5/5Great app for cruising sailors.

    Initially I had some questions regarding using the app, the developer responded very quickly and was helpful. There are a few quirks to get used to, such as the display always reading North up, but once you understand how it works it works great. The app itself is a lifesaver. I sleep better at night with it running in the background on my phone. The car horn alert wakes me instantly. If you’re a cruising boat and basically live on the hook, this app is a must have. I tried a couple different ones, including the ones included with my navigation software, but this app is the easiest to use and works as advertised. I use it every day and highly recommend it. SV Apparition.

    Appariton.Ascendant · 31 Jul 2026

  2. 5/5My favorite anchoring app

    We are at anchor most of the time and this app has been giving me peace of mind for about the last 4 years or so. It keeps improving and the features generally work well for us. The only bit missing is a sharing feature so I can leave a device on board and share the monitoring with my phone from shore. Then, it’d feel complete. Dark mode is appreciated tho the track and circle could contrast a bit better especially under low brightness. I really appreciate the anchorages tab as it gives an overall view if others have been in an area before as well as seeing ahead of a passage some popular or possible spots for anchoring. Really great when you go to unfamiliar places. It’s really one of my top favorite features. I use this app in tandem with another where I can remotely monitor from shore. I like the backup but this one is still the first I check and set. Thank you.

    Em Anni · 31 Jul 2026

  3. 5/5Anchor Alarm Excelent

    Ten day sail from Pensacola, Fl to Mexico Beach/Port St Joe and back. Experienced many rough storms and anchor drug twice, Anchor Alarm alerted us with a plenty loud signal, not too loud. Easy to use, 35 ft Oday with about a 60 ft anchor line. (10 ft depth below keal) Set Alarm distance at 80 ft, GPS accuracy at 30 ft, draw trace - on (this draws where the boat moves as wind changes or anchor drags), Show Accuracy circle-on, anchor alarm as “doorbell”, Sounds to low volume warning -on…. SLEPT PEACEFULLY, though I am old and as I woke during the night a couple times and visually checked our position for added peace of mind and “all was well.”

    MyLordReigns · 31 Jul 2026

  4. 5/5Makes you a moderate paranoid!

    I am always highly observant and extremely paranoid when I anchor close to the moored boats, rocks, etc. Sailing solo is fun and rewarding yet it comes with its arguably negative perks. Keeping an eye on the anchor especially during night time is one of them. Although I have only used the app two nights during my anchorage at Emerald Bay in Catalina Island, I can easily say that it immediately became my peace of mind tool... Unsolicited advice: Learn to anchor properly before relying on your apps, software or your navi. Cause you’re not anchored properly, they will keep you up all night... Happy anchoring!

    Ethanlbc27 · 31 Jul 2026

  5. 4/5Not Performing

    Bought this app with the hope the positive reviews were accurate. I’ve used the alarm app on a mooring buoy in the San Juan’s to gauge accuracy. The alarm shows the boat moving out of range and alarms frequently. Considering I’m on a buoy connected to the ocean floor with a helix you would think the boat would not move out of range. I’ve tried set and late set and played with parameters. If I’m doing something wrong would appreciate developer feedback. Update: the developer reached out to support. However, in using the app it’s important to give the app time to get an excellent gps fix. After waiting and then starting the app it performed as expected.

    autrain river · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

  • Data Linked to You — App Functionality — Identifiers — User ID Developer declared
  • Data Linked to You — Identifiers Developer declared
  • Data Not Linked to You — Analytics — Diagnostics — Performance Data Developer declared
  • Data Not Linked to You — Analytics — Usage Data — Product Interaction Developer declared
  • Data Not Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
  • Data Not Linked to You — Diagnostics Developer declared
  • Data Not Linked to You — Usage Data Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 3.11

    • Translated the app in several more languages

  • 3.5

    • Option to adjust the time before a bad GPS accuracy alarm is triggered. • Visual enhancements.

  • 3.7

    • Added support for Apple Watch

  • 3.9

    • Improved Apple Watch support

  • 4.3

    • We've added a new map screen where you can see the anchor and boat positions and the alarm radius • The Apple Watch app now displays the boat's speed and heading

  • 4.4

    • We've added a new map screen where you can see the anchor and boat positions and the alarm radius • The Apple Watch app now displays the boat's speed and heading • Wiped out a bug on the map screen on iPads

  • 4.5

    You can create Siri shortcuts to start and stop monitoring and you can start and stop monitoring from your Apple watch.

  • 4.6

    • Updated for iOS 13 • New alert to prevent accidental stopping (optional) • New option for selecting preferred GPS accuracy • Added more than ten thousand new anchorages

  • 4.7

    • Bug fixes New in 4.6: • Updated for iOS 13 • New alert to prevent accidental stopping (optional) • New option for selecting preferred GPS accuracy • Added more than ten thousand new anchorages

  • 5.10

    • It is now possible to change the circle radius by tapping on the anchor icon on the map screens • The dimensions of the custom area are now displayed on the screen while drawing • Improvements to non-circular areas. The app will automatically switch to circular area if the boat is outside the area

  • 5.11

    Performance improvements

  • 5.3

    • New streamlined map screen • Anchor can be dragged on the map • Native dark mode support • Removed Facebook login and added Sign in with Apple • Greatly reduced app size Stay tuned for more!

  • 5.5

    • New streamlined map screen • Anchor can be dragged on the map • Native dark mode support • Removed Facebook login and added Sign in with Apple • Greatly reduced app size • Bug fixes Stay tuned for more!

  • 5.5.1

    Fixed an issue when starting from Apple Watch.

  • 5.6

    Fixed an issue when the app can become irresponsive after monitoring for many hours.

  • 5.7

    • Enhanced Apple Watch app • Added more anchorages, now includes more than 57000 all around the world • Improved Anchorages screen

  • 5.8

    • It is now possible to draw custom monitoring area on the map • Sunrise, sunset, moonrise, moonset and moon phase are displayed on the main screen • Support was added for remote monitoring of a Boat Vitals device • Boat speed is displayed on the main screen

  • 5.9

    • Added a map on the Find My Boat screen • Improved Boat Vitals connectivity

  • 6.3

    Remote Monitoring from second device

  • 6.4

    • Remote monitor your boat from a second device

  • 6.5

    Added support for Liquid Glass on iOS 26

  • 6.5.1

    • Added support for Liquid Glass on iOS 26 • Bug fixes

  • 6.5.2

    • Added support for Liquid Glass on iOS 26 • Bug fixes

  • 6.5.3

    • Performance improvements

  • 7.1 · 16 Jul 2026

    New one-time purchase to unlock advanced anchor features. Performance improvements and small refinements throughout the app.

Alternatives

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
31 Jul 2026
Sources
App Store

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