Comparison

Anchor Alarm / Watch vs SailTimer API™

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Anchor Alarm / Watch

This app monitors your boat's position and alerts you if it drifts outside a set radius. It offers remote monitoring with two devices and a feature to find anchorages. You can also request yacht charters directly through the app.

Highlights
  • Set custom anchor radius
  • Receive immediate alarm alerts
  • Adjust monitored area precisely
  • View boat location history
  • Remote monitoring with two devices
  • Search for nearby anchorages
  • Request yacht charters
Features
Read full description

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: https://ankeralarm.app/en/conditions See our FAQ page at https://ankeralarm.app/en/faq for help.

About

SailTimer API™

This app bridges the gap between your SailTimer Wind Instrument and other navigation or performance apps. It also offers access to crowdsourced wind maps and marine weather animations through a subscription, enhancing your sailing experience with real-time wind data.

Highlights
  • Integrates with SailTimer Wind Instrument
  • Delivers wind data to partner apps
  • Crowdsourced wind maps
  • Marine weather animations
  • Supports chartplotter apps
  • Real-time wind data
Features
Read full description

This app allows you to use SailTimer products in other partner apps. First, if you have the wireless SailTimer Wind Instrument (www.SailTimerWind.com), this app can receive the transmissions and deliver them to other apps for viewing. Use this app with the the SailTimer™ chartplotter app, or with lots of other navigation, wind gauge or performance apps (https://wi-rb.com/apps/). But what if you want to see what the wind is doing up ahead, or around the next point? Then you need our crowdsourced wind maps and marine weather animations. You can get the low-cost subscription here, to view our marine weather animations in partner apps. We'll add a growing list of partner apps at https://SailTimer.boats App web page: https://wi-rb.com/api. If you have a question or feedback please email info@SailTimer.co - we’re here to help. If you are getting the app and like this wireless technology, please help out other sailors by letting them know with a quick rating on this version while you’re here.

Screenshots

Anchor Alarm / Watch4 screens
SailTimer API™4 screens

Verdict

The call

The clearest difference is review sentiment: Anchor Alarm / Watch at 55% against SailTimer API™'s 0%. Anchor Alarm / Watch also leads on ratings volume (805 vs 1). SailTimer API™'s advantage is rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Anchor Alarm / Watch sells 5 in-app purchases, starting at $3.99 per year and SailTimer API™ sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SailTimer API™ holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Anchor Alarm / Watch has 805 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 55% of Anchor Alarm / Watch's written reviews are positive against 0% of SailTimer API™'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Anchor Alarm / Watch ships an update every 3 weeks, SailTimer API™ every 4 weeks. The most recent releases landed on September 24, 2026 and August 19, 2026 respectively.

Scorecard3 real differences · 7 level
Anchor Alarm / Watch versus SailTimer API™: the parameters behind the verdict, then further details
ParameterAnchor Alarm / WatchSailTimer API™
PriceFreeFree
Rating4.7 (805 ratings)5.0 (1 ratings) — better
Positive reviews54.5% of reviews — better0.0% of reviews
Number of ratings805 — better1
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size9 MB19 MB
Age rating4+4+
Developerw+h GmbHSailTimer Inc.

Customer experience

Anchor Alarm / Watch

All ratings805 ratings
Positive93.4%
Neutral3.1%
Negative3.5%
Written reviews66 reviews
Positive54.5%
Neutral10.6%
Negative34.8%

SailTimer API™

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Anchor Alarm / Watch

Reported bugs

3 issues
  • Anchor position lost repeatedly
  • Alarm not triggered or not working as expected
  • Connectivity issues with remote devices

Requested features

4 requests
  • Ability to adjust anchor settings remotely
  • Option to change units from meters to feet
  • Louder alarm volume
  • Improved reliability and consistency

SailTimer API™

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Anchor Alarm / Watch

Subscriptions2
  • Unlock as a subscription$3.991 Year
  • Anchorage search subscription$9.491 Year
One-time3
  • 8 days anchorage search$2.99
  • 30 days anchorage search$3.99
  • Unlock as a one-time purchase$22.99
6 purchases

SailTimer API™

Subscriptions6
  • Crowdsourced Wind Maps - Monthly7 Days trial$2.991 Month
  • WNI Marine Weather - Monthly7 Days trial$2.991 Month
  • AI Forecasts - Monthly7 Days trial$2.991 Month
Show 3 more
  • Crowdsourced Wind Maps - Yearly7 Days trial$19.991 Year
  • WNI Marine Weather - Yearly7 Days trial$19.991 Year
  • AI Forecasts - Yearly7 Days trial$19.991 Year

Questions

Is Anchor Alarm / Watch free?
Anchor Alarm / Watch is free to download, with in-app purchases available.
Is SailTimer API™ free?
SailTimer API™ is free to download, with in-app purchases available.
Which has better reviews, Anchor Alarm / Watch or SailTimer API™?
SailTimer API™ is rated higher. Anchor Alarm / Watch averages 4.7 out of 5 from 805 ratings, while SailTimer API™ averages 5.0 from 1 ratings.
Do Anchor Alarm / Watch or SailTimer API™ have ads?
Neither Anchor Alarm / Watch nor SailTimer API™ shows ads.
Which is updated more often, Anchor Alarm / Watch or SailTimer API™?
Anchor Alarm / Watch ships an update every 3 weeks, and SailTimer API™ every 4 weeks. Most recently, Anchor Alarm / Watch was updated on September 24, 2026 and SailTimer API™ on August 19, 2026.

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