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.
Must have for cruisers! You must have this if you anchor your boat and can't stay on deck to be sure you stay put. Sleep soundly or go ashore for the day and know the boat is where you put it.
Saved my bacon! I used this app sailing in the San Juans last summer. I am a fairly novice and paranoid sailor, but using this app allowed us to have an amazing week. Using this app we were able to anchor in some very tight conditions in weather. There was one night where the app detected us dragging the achor in a tight anchorage with other boats. Without this app, our sailing trip would have: a) not been possible, or b) been disastrous. Thanks to the folks that developed smart phones and apps!
Very Good I held off buying this because of the price for months. When we launched the boat in the spring, I realized that while expensive for an app, this was a negligible boat expense, especially for the peace of mind. I used it 15 to 20 times over the 2011 season and once I had it figured out found it very useful. When I first installed it, it would not function correctly. I emailed the developer, and he responded a couple of days later with an update that fixed my specific issue. When I first started using it, I'd anchor the big boat in a quiet cove and get into the dinghy to practice using Anchor Alert and to see how it reacted. I'd row up to a lobster bouy and set my imaginary anchor, set Anchor Alert then drift away while I could watch the screen to see when an alarm was triggered. I also tested the exclusion zones & drift. I trust the software, and while at anchor I like to use this as another tool to check my night observations.
Excellent Bought this a couple of days before my annual sailing trip thinking it would be "a bit of fun", but on the first night when it took 5 attempts to set the anchor and with winds stronger than expected it worked brilliantly and provide a great deal of reassurance. The instructions, though extensive, are not very clear, but once you get the hang of it you can effectively set a segment of your swinging arc as a zone and see your track within it. Highly recommended.
fix for error on older devices caused by API change in Android 6.0
save location history to internal storage instead of sdcard and remove redundant external storage permissions.
Recognise international phone numbers for SMS control messages
Fix preferences screen for devices that lack a hardware compass
Change colour scheme to better support colour-blind users
Change bearing to display leading zeros
Add 'north-up' option in advanced preferences