iPhone Screenshots


Yachting Magazine: "probably the best dollar you've ever spent"


"Anchor Watch" uses the GPS on your smartphone to monitor your boat's position. If the boat moves outside of set limits, the program will alert you immediately. Alerts include phone calls, sound, vibration alerts, popups, email or SMS (through a third party).

There are no more sleepless nights when you worry about weather your boat is dragging or not. Keep the phone next to where you are sleeping and a quick glance will assure you that all is ok.

If the boat drags out of the predefined area (no limit on radius), it will alert you in any way you decide. Flashing text, sounding alarm or even call to another phone.

As only anchor guard app for iOS, Anchor Watch allows for the manual adjustment of your anchor position, by touch of a finger or manual entry. So if you were busy with other things then setting the alarm, you can adjust for the drift.

And if you anchored both stern and bow, Anchor Watch offers an unique course alert when a minor drift can still mean your boat is turned from the pier.

Anchor Watch sophisticated filtering allows for GPS errors, which can occur every now and then. The settings panel is fully customized allowing a number of different alarm types.

Of course it runs in the background too, which allows you to pursue other activities on your phone while Anchor Watch is on guard. Continued use of GPS running in the background can dramatically decrease battery life. Fortunately you can tell Anchor Watch to conserve battery and update only in foreground.

Available as an in-app purchase are advanced nautical maps as well as the functionality to download and show offline maps which you can use when you don't have a data connection (or don't want to use it due to roaming charges. The maps available are based on the http://www.openseamap.org data. Check for quality and availability on their website, it is under rapid community development. You can also send in your maps and they will be added to the server for the benefit of all.

Anchor Watch is under constant development, so if you have any remarks just drop an email or write a feature request in the comment section and we will get straight to it.

Known issue: enable Alerts in iPhone->Settings->Notifications to receive audio alerts in the background

What’s New

Version 2.8.1

Minor fixes

Ratings and Reviews

4.0 out of 5
7 Ratings
7 Ratings
gggggrrrrr11 ,


Keeps turning off. Never sure if it’s working. Does not alarm if phone ringer set to silent. Bugs not fixed over past 2 years. Find another product to use.

JohnnyChristo ,

Hmm a BIG glitch

Great program love the phone call bit. Problem is this if your phone has powered down after the 2 or 3 mins to save battery or you are writing a review about an app well it just vibrates and the way I sleep..... Another similar app has overcome this but hasn't got the nice email phone call extra which is nice. Oh small other problem if I leave the phone on the Boat to monitor it who will it call?
One more probably my not understanding the app how do u get it to shut up! A click on the ' all hands on deck' u would think but uh uh. Please answer these problems it's a good app I would pay much more if it was streamlined.

Mariner-62 ,

Nice concept, but unreliable !

Great concept, and pretty good interface. Although the methods are a bit clunky, it's nice to be able to refine/adjust the anchor position after settling into an anchorage. HOWEVER, the app crashes (freezes) after about 10 hours of operation... rather dangerous if you are relying on getting a drift alert which never happens. I don't use this one any more, but given the low price it was fun having a play with it. The ChrisParsons app is more reliable, but unfortunately doesn't have the position adjust, so you have to get it right first time.


Chris Lukassen
13.4 MB
Requires iOS 9.3 or later. Compatible with iPhone, iPad and iPod touch.
English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2016 Luky Soft
In-App Purchases
  1. Upgrade to offline maps $1.49
  2. Upgrade to dynamic Sea Maps $1.49


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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