More from developer
Features a unique anchor projection system, just point and click and your anchor position is set. User defined swing area with exclusion and slack zones, runs in the background and can be controlled by SMS* from another phone.
Get SMS alerts* with embedded Google maps URLs, silent or audible alarms, with or without vibration, vessel tracking and more, all with very low memory use and long battery life.
(* on devices that support telephony)
If you want the best, you want Anchor Alert.
Anchor Alert is an advanced anchor alarm application made 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 takes into account the magnetic declination of the current location to more accurately set the anchor point. It has a clutter-free interface and once initial verification has taken place runs fully off-line. It has been designed primarily to maximise reliability and battery life while allowing the user a great degree of flexibility and customisation.
See http://www.slimjimsoftware.co.uk for a full list 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 this application is running in the background and how to completely stop it.
NOTE: some Android devices using versions 4.0 to 4.0.4 are known to be overly aggressive when shutting down background tasks, this interferes with Anchor Alert's background function and causes it to be shut down after a couple of hours without warning. if you own one of these affected devices please contact your carrier about an upgrade to 4.0.4 or later, in the meantime you should only use foreground mode. Android versions 2.x and 3.x should not be affected.
Finally, please email me and let me know how I can make this app better for you before leaving negative feedback. My goal is a 5 star rating from everyone that buys this app, please help me achieve this!
Please note: I have no control over data files so please try the free version first to see if the areas you want are included before buying this app.
Users in Canada should choose 'Non-Free' in the region dialogue, this also covers any non-free data for UK, Germany and Holland that may not be in the Europe region.