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  • #: 212939
  • Price: $3.99 In Apple Store
  • Category: Navigation
  • Updated: 2012-01-05
  • Current Version: 2.0
  • 2.0
  • Size: 2.30 MB
  • Language: English
  • Seller: Mark Thompson
  • Requirements: Compatible with iPhone 3G, iPhone 3GS, iPhone 4, iPad Wi-Fi + 3G, and iPad 2 Wi-Fi + 3G. Requires iOS 4.1 or later.
  • © MSTApps
  •  Add to Favorite apps



Does Not Work Properly With IOS 7.xx

I am working on a fix

1.6 is finally here all known bugs have been fixed and the anchor offset feature has been added which allows you to set an anchor point after you anchor. Now runs properly on ios version 5.

Anchor Alert was designed to warn you when your anchor drags or breaks loose. It will help protect you from running aground or drifting into other boats while at anchor.

* Just an FYI for those of you that don't know how to close programs that run in the background. Double click your home button(the round button at the bottom of the screen) then you will see all the programs running in the background. Hold your finger on one of the apps until they start wiggling and have an x on them then delete it. That is how you stop apps running in the background it does not delete them like on the main screen. Also this app is not recommended for iPhone 2's.

Price Reduced from $3.99 to $2.99 one week only get it now before it goes back up!!

Coming This Fall Rev 1.6

Anchor Offset Function

Map Rotation using compass data

Rev 1.5 Just Released

* For V4 Firmware and above Only *

Runs in BackGround!

Drops a larger green dot for anchor spot and a red dot for saved anchor spot.

When you select silent mode the dropping of the anchor is now silenced

Note: "Continued use of GPS running in the background can dramatically decrease battery life."

Rev 1.4:

Added ability to change from sound to vibrate with visual alarm just press the speaker icon.

Now saves range, units, range ring and last anchor point.

Takes 10 samples after position is outside ring before alarm is sounded this should help prevent false alarms.

Calculates average of several position samples to help prevent false alarms.

Fixed several memory leaks and improved performance.

Made the dimmer function darker to improve battery life.

Added a lock/unlock feature so you can scroll and zoom around the map.

Rev 1.1:

Disabled autolock so app won't shut down.

Rev 1.2:

Now goes up to 500' in steps of 20.

Added a LED indicator to let you know when the signal is optimal for setting alarm.

Press the LED to dim the screen

Other Minor enhancements


What's New in Version 2.0

Bug Fix

iPhone Screenshots

AnchorAlert iPhone Screenshot 1
AnchorAlert iPhone Screenshot 2
AnchorAlert iPhone Screenshot 3
AnchorAlert iPhone Screenshot 4
AnchorAlert iPhone Screenshot 5

Video Reviews

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Customer reviews

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Rated 5/5 based on 3 customer reviews.


5/5 stars

Excellent app!

I've spent three nights out on two separate trips and this app has worked excellently, i also purchased the two 99 cent apps that are available on the store now and was disappointed, they are missing necessary features to make them useful and are unstable one crashed repeatedly every few minutes. This app has worked exactly as described both in the foreground, the background, and while the phone is asleep. Fantastic!

I've also chatted with the developer by email and he Is committed to the future development and support of the app including some really cool and useful features such as on the fly switching of the anchor location.

Don't hesitate to buy this app as a backup to your current gps nav station, or as part of a standalone gps solution along with the excellent navionics app for navigating. the best part is you can take it downstairs into the bunk with you and check the anchor without getting out of bed!

5/5 stars

Excellent App ! :-)

Works great and love that it works in the background and while the phone is alseep. This is a great back-up to expensive GPS and big energy saver for my boat.

5/5 stars

Almost Perfect

This app works great, with one shortfall. It doesn't run in the background. As long as you leave the app running in the foreground, it works great. If you exit the app, the alarm wont sound. No big deal. Just make sure the app is running in foreground and your ringer is turned up before you hit the hay.

Other than that, works great...I slept much better at anchor knowing my hook was not dragging!

UPDATE: developer has updated program to run in the background. I use this program all the time. Changing rating to 5 stars.


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