This is a Anchor Watch application, it is very easy to use, you can simply active the app after you have dropped your anchor and prepared the boat. You don't have to know the exact coordinates of the anchor, you only need the bearing and the distance to your anchor, thats all.
This is the ad free version of the Anchor Watch (free) app
+ Text Message alarm notification to another phone, useful when ashore
+ Background task support, alarm is still active when you use other apps
+ Drop anchor and adjust alarm easily via drag & drop
+ Set advanced drift radius, very useful when there are many boats on the anchorage or you anchoring between mooring boys
+ Fully offline, doesn't need a internet connection
+ Display of the OpenSeaMap data http://www.openseamap.org/ (Copyright: http://www.openstreetmap.org/copyright/), this is completely optional and also possible without internet connection. For usage of the map in offline mode, please see: http://www.haakseth.com/?p=30.
+ Configurable measure units: Metric, nautical miles, feet
+ Possibility to rotate map according to the device compass
+ Fine GPS location: To monitor your location
+ Send SMS: To send alarm notifications via Text Messages
+ Read contacts: Only used to lookup phone numbers for Text Message notification
+ Wake lock: To wake up phone during alarm
+ Vibrate: For the alarm
+ Full internet access: For displaying the OpenSeaMap data
+ Network state: For displaying the OpenSeaMap data
+ Read and write external storage: For offline map availability and map data caching
In case you have any problems do not hesitate to contact me
* New configuration setting for the display of the locations, possible settings are:
GG° MM' SS,SS"
* When compass is activated during dropping the anchor, it is now possible to take over the value. For that, just align the device to the anchor.
* The drift value from the settings now refers to the position of the vessel. This means the radius is now calculated from the distance to the anchor + the value from the settings. This can be adjusted at each maneuver.