Sailsafe. Anchor alarm.
Free App
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About Sailsafe. Anchor alarm.
Sailsafe is an application designed to increase safety in the anchoring of small and medium-sized ships.
It lets you stablish a safety zone around your anchor and activate an alarm that will alert you in case your ship leaves that zone at any given time (very common situation when anchor drifting occurs or the chain breaks). You will be able to see where the boat is located on the map at any moment, which is very useful if it is dark or visibility is reduced.
The safety zone can be set just indicating a radius.
In PRO version, you can also specify an aditional exclusion zone to detect, for example, changes in wind direction that could put our boat at risk if, for example, the coast is positioned itself to leeward.
Sailsafe has been designed to maximize the safety after anchoring. Therefore, once the alarm is activated, not only the position of the ship is checked, but also the level of the battery in the mobile device or the state of the GPS signal. If any of these parameters fails, then the app will produce an audible alarm to inform about the specific problem. Thus, after setting the alarm you can relax and trust Sailsafe. It will be watching for you.
Features:
- Run in the background, which is safer and save battery power.
- Main screen shows useful information:
1. Current position (latitude, longitude and accuracy of the measure).
2. Current security radius.
3. Current drift.
- Set graphically and easily a security zone with optional exclusion zone. (The exclusion zone is only allowed in pro version).
- Wind forecast included (48h). You will be warned if the boat is going to be out of the security zone due to a wind change.
- The ship and the security zone are always shown over a map with optional satellite view.
- Once the alarm has been set, you can adjust the anchor position in case it is not correct. Just indicate the actual bearing (read it from the compass) and estimated distance between the ship and the anchor (surface distance).
- Option to ignore the current volume of the device and set it to the max when the alarm is triggered.
- Option to set a minimum battery level. When reached, the alarm is triggered.
- Option to allow automatic alarm re-launch after a false positive (only pro).
- Option to keep the screen on while the alarm is activated.
- Option to call a phone number when the alarm is triggered.
- Remote commands (only pro):
1. An incoming call from a defined phone will reset the alarm.
2. Send a SMS with the word STATUS to the on board device and it will respond with another SMS containing useful information about the location of the ship.
- After one minute without GPS signal, the alarm is triggered. It is assumed that the device has no GPS signal.
- Option to set the measurement unit (feet or meters).
- Three modes of operation:
1. Normal. GPS readings every 10 seconds. Simple algorithm to discard odd positions. (Save battery when the device is not charging).
2. Fine. GPS readings every 2 seconds. Complex averaging algorithm based on accuracy and time of the last 10 GPS readings to discard odd positions making the whole system smooth and robust. More power consumption.
3. Continuous. GPS readings every 1 second. Same algorithm as in fine mode. Optimus for adverse weather conditions. More power consumption.
4. Bad GPS signal mode.
- When re-enabling alarm, if ship moved less than 150 meters, you can opt between keeping last anchor position (useful after a false alarm) or using the actual GPS reading.
- If alarm is not set, you could use the map window as a navigation assistant (e.g. when it is foggy). Keep in mind that the device does not act as a radar and can not detect other boats. Use it at your own risk.
It lets you stablish a safety zone around your anchor and activate an alarm that will alert you in case your ship leaves that zone at any given time (very common situation when anchor drifting occurs or the chain breaks). You will be able to see where the boat is located on the map at any moment, which is very useful if it is dark or visibility is reduced.
The safety zone can be set just indicating a radius.
In PRO version, you can also specify an aditional exclusion zone to detect, for example, changes in wind direction that could put our boat at risk if, for example, the coast is positioned itself to leeward.
Sailsafe has been designed to maximize the safety after anchoring. Therefore, once the alarm is activated, not only the position of the ship is checked, but also the level of the battery in the mobile device or the state of the GPS signal. If any of these parameters fails, then the app will produce an audible alarm to inform about the specific problem. Thus, after setting the alarm you can relax and trust Sailsafe. It will be watching for you.
Features:
- Run in the background, which is safer and save battery power.
- Main screen shows useful information:
1. Current position (latitude, longitude and accuracy of the measure).
2. Current security radius.
3. Current drift.
- Set graphically and easily a security zone with optional exclusion zone. (The exclusion zone is only allowed in pro version).
- Wind forecast included (48h). You will be warned if the boat is going to be out of the security zone due to a wind change.
- The ship and the security zone are always shown over a map with optional satellite view.
- Once the alarm has been set, you can adjust the anchor position in case it is not correct. Just indicate the actual bearing (read it from the compass) and estimated distance between the ship and the anchor (surface distance).
- Option to ignore the current volume of the device and set it to the max when the alarm is triggered.
- Option to set a minimum battery level. When reached, the alarm is triggered.
- Option to allow automatic alarm re-launch after a false positive (only pro).
- Option to keep the screen on while the alarm is activated.
- Option to call a phone number when the alarm is triggered.
- Remote commands (only pro):
1. An incoming call from a defined phone will reset the alarm.
2. Send a SMS with the word STATUS to the on board device and it will respond with another SMS containing useful information about the location of the ship.
- After one minute without GPS signal, the alarm is triggered. It is assumed that the device has no GPS signal.
- Option to set the measurement unit (feet or meters).
- Three modes of operation:
1. Normal. GPS readings every 10 seconds. Simple algorithm to discard odd positions. (Save battery when the device is not charging).
2. Fine. GPS readings every 2 seconds. Complex averaging algorithm based on accuracy and time of the last 10 GPS readings to discard odd positions making the whole system smooth and robust. More power consumption.
3. Continuous. GPS readings every 1 second. Same algorithm as in fine mode. Optimus for adverse weather conditions. More power consumption.
4. Bad GPS signal mode.
- When re-enabling alarm, if ship moved less than 150 meters, you can opt between keeping last anchor position (useful after a false alarm) or using the actual GPS reading.
- If alarm is not set, you could use the map window as a navigation assistant (e.g. when it is foggy). Keep in mind that the device does not act as a radar and can not detect other boats. Use it at your own risk.
All Application Badges
Free
downl.
downl.
Android
2.3.3+
2.3.3+
Android app
App History & Updates
What's Changed
- Added a button to edit preferences.
- Added a button to edit preferences.
Version update Sailsafe. Anchor alarm. was updated to version 2.0.3
Version update Sailsafe. Anchor alarm. was updated to version 2.0.2
Name changed Name changed! Sailsafe now is known as Sailsafe. Anchor alarm..
More downloads Sailsafe. Anchor alarm. reached 10 000 - 50 000 downloads
What are users saying about Sailsafe. Anchor alarm.
L
by L####:
by L####:
Great app. I'm switching to the pro version. Update: Lowering from 5 to 2 stars. We did install the pro version, and after using it for real we bumped into flaws that make it unusable. See our review from user kathyu (summary: the app should handle temporary loss of GPS signal in a graceful way). Once those issues are fixed, I'll bump back to 5 stars. 1. When the GPS signal is lost, it's not the end of the world. The signal will come back. The app should wait a configurable number of minutes before alerting. 2. If the app alerts on GPS signal lost anyway, it should stop alerting and go back to work once the signal is back. 3. If the app does alert on GPS signal lost, it should also call the emergency phone (and should notify also if GPS signal is back). 4. The alarm should shut up after a configurable number of minutes. No need to annoy the boat cat for hours if we are not onboard. In addition, the app should alert even if the phone is in 'do not disturb' mode. Thanks for looking into this.
N
by N####:
by N####:
Nice app but when it contacts my phone a text with amount dragged and direction rather than a voice call would be good, also when I text the app for info it just receives a text the app does not do anything. When no internet a low res base map Would be good, with those bits done would be 5 stars sorry i did pay for the full app and that was the one i was reviewing, the free app is very good for a free app but the paid for one dident seem to do any more than the free one, i could set up more and select the shaped anchor swing area but when it reported a anchor drag it telephoned my spare phone, when i texted back with the key word "status" as instructed the text arived but i dident get any reply back to me? i realy like the idea and way it works so will probably try it again but if you have a solution for me that would be great.
S
by S####:
by S####:
Get the pro version... the wind predictions make it worth it!
Y
by Y####:
by Y####:
You can set the anchor position after you have set the anchor and have a free minute.
S
by S####:
by S####:
Peace of mind.
S
by S####:
by S####:
Had to uninstall almost immediately as the bright red flashing add was incredibly distracting. Especially on an anchor drag alarm. Red = danger.
S
by S####:
by S####:
Anchor drift alarm
Q
by Q####:
by Q####:
Good app
H
by H####:
by H####:
Left a mobile phone on boat and set it up to call my phone if boat violated pre-specified anchor radius. Worked great!
D
by D####:
by D####:
Very reliable app :D
C
by C####:
by C####:
Good n Nice App
D
by D####:
by D####:
Easy to use. Bought pro just to support the developer. Suggestion, option to make text bigger so I don't need to put glasses on at night.
J
by J####:
by J####:
It seems that the anchor was reset each time I stopped the alarm. The shown boat position is incorrect before the alarm is activated. Also unable to configure the battery alarm level.
D
by D####:
by D####:
We live aboard and anchor out every night. I've tried every anchor alarm app out there and this is the best. --Great piercing alarm sound is sure to wake you up. -- Easy to set guard zone . -- If boat moves outside guard zone you can easily reset alarm if the alert was false. --You can also choose to reset alarm using original anchor position or set a new one. (One of the best features) --Great app, helps me sleep easy!
C
by C####:
by C####:
This app was the best of the anchor watches I tried. It is simple to use, does work and most of all is intelligently designed to poll the GPS regularly not leave it running the whole time so it uses little power.
X
by X####:
by X####:
It worked for me better on the water than my wife's IPhone anchor watch app. One false positive which corrected itself upon next GPS reading. It is nice that it errors on the side of safety. I feel like my GPS hardware causes false positives not the app.
R
by R####:
by R####:
Can see map and enable alarm, but cannot change any settings. I.e. doesn't seem to work at all on my HTC one.
M
by M####:
by M####:
Works and low power usage This app was the best of the anchor watches I tried. It is simple to use, does work and most of all is intelligently designed to poll the GPS regularly not leave it running the whole time so it uses little power.
L
by L####:
by L####:
Yes, it works for me It worked for me better on the water than my wife's IPhone anchor watch app. One false positive which corrected itself upon next GPS reading. It is nice that it errors on the side of safety. I feel like my GPS hardware causes false positives not the app.
G
by G####:
by G####:
Doesn't work Can see map and enable alarm, but cannot change any settings. I.e. doesn't seem to work at all on my HTC one.
H
by H####:
by H####:
Great app Very reliable app :D
I
by I####:
by I####:
Confusing usage It seems that the anchor was reset each time I stopped the alarm. Also unable to configure the battery alarm level.
by N####:
Identified as malware.