Excellent anchor alarm app. I've used it enough to have complete confidence in it. It's easy to set up and it works. I don't understand why this functionality is not designed into Raymarine chartplotters which cost thousands of dollars. The anchor alarm function on chartplotters does not allow for setting of distance and bearing to the anchor, so unless you activate it when the GPS sensor is directly over the anchor, which is virtually impossible to do, the swing circle will never be centred around the anchor and is usually offset by chain length + boat length (assuming that the GPS sensor is towards the stern of the boat). This means that if you have to allow for a 180 gegree wind shift, the allowable drift range has to be extended by chain length + boat length, e.g. for 30m chain out + 14m boat and 10 drift, the alarm drift radius has to be set to 2x(chain + boat length) + drift = 98m. Using the Anchor Alert app, the alarm drift radius would be chain + boat + drift = 54m. Also, the alarm sound on the Raymarine eS series plotters is a rather low level 4kHz tone which is easy to sleep through. You will NOT sleep through the Anchor Alert alarm sound!! Thanks for a great app.
Please add NMEA for lat/lon would allow us to monitor anchor position using the boats GPS antenna. Also could add a depth alarm.
Great app. This app does exactly what you need. And does it easier than any other app I have tried.
Don't leave port without it This app has been a great way to sleep better while on the hook. With the message capabilities, even going ashore is less of a "I hope we're still in the same place" moment.
Well worth the price Tried them all. Thuis is the easiest to use and most configurable. And ost importantly you don't have to set it while anchoring - easy to set later. Well worth the money.
Excellent "must have " App. Don't think twice about having to pay for this app. It's the best app for sailors that has been developed. It certainly worked for me and alerted me to a potentially disastrous situation for which I am eternally grateful. Works better than my Garmin! I notice my original story appears on the website so I won't repeat it here. One thing that is interesting is that although I have a steel boat the app works fine below on Android 4.1 (HUAWEI ) . It's Five stars from me. Thanks for the useful updates.
v1.9.8 - improved phone number entry for SMS alerts