A marine weather and chartplotter app for all boaters.
4.18·488 reviews·100,000+ downloads
About SailTimer™
SailTimer™ is a maps & navigation app developed by SailTimer Inc..
Download Statistics
SailTimer™ has been downloaded 100 thousand times. In the last 30 days, the app was downloaded 240 times.
User Ratings
SailTimer™ is rated 4.18 out of 5 stars. The rating is based on 490 ratings.
App Information
SailTimer™ is FREE to download. The APK download size is 44.83 MB. The latest version available is 6.3.2. The last update was on August 8, 2026.
Technical Requirements
SailTimer™ requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play November 2019.
Description
Now for all types of boats. Beautiful weather animations with different types of marine weather: • Crowdsourced wind maps for the most accuracy and highest resolution. • Marine weather forecasts from Weathernews Inc. (WNI) with maps of precipitation, visibility, air & sea temperature, wind, waves/swell & ocean currents. • AI models of ocean currents and marine weather from Amphitrite.
There are lots of weather services and apps, but they all use the same satellite weather forecast. Low resolution, low accuracy, and only updated 4 times per day. Weather satellites are 500 to 22,000 miles up in space. Crowdsourcing is changing marine weather. Why rely on satellite imaging, when you can use actual measurements from other boaters? In coastal areas, we archive these to map wind flow for more accuracy.
Crowdsourced weather maps like these have never been possible before. A wind sensor measures local wind around your boat, but now you can also know the wind and sea state up ahead or around the next point.
FEATURES FOR ALL TYPES OF BOATS: ● View your route with free aerial photos and land maps worldwide. If you have the Navionics Boating app, you can import worldwide Navionics charts here with a yearly subscription. All maps and charts can be used offline.
● The weather animations have a low-cost monthly subscription with a free 7-day trial.
● Create and rename waypoints by tapping or importing a list.
● The white crosshair icon in the top left is the “Follow-Me” button. If clicked, it turns blue and keeps your location in the center of the screen as you move. Unselect when not moving to look around the map, and when to zoom in and out.
● GPS track can be displayed under options. Save a screenshot to view or share your trip later.
FOR SAILBOATS: Whether cruising or racing, it is important to be able to determine the best heading on all points of sail. GPS chartplotters and mapping apps do not account for sailboat tacking distances. But if they do not know the distance you will travel, how can they calculate your correct ETA? This is the only product that calculates your optimal tacks using your tacking distance and polar plots. Details at www.SailTimerApp.com. SailTimer gives you a quick and easy display of your optimal tacks and TTD® (Tacking Time to Destination).
● If you have the wireless SailTimer Wind Instrument™ (www.SailTimerWind.com) connected to your phone/tablet, your optimal tacks will update automatically in this app as the wind changes. Or you can manually enter wind direction and wind speed to see your optimal tacks for the route you are planning.
● Just select a route to see the optimal tacks to each waypoint.
● When you pass a waypoint, press the > on the right side of the screen to go to the next waypoint. (Press < on the left side to see optimal tacks to the previous waypoint).
● The optimal tacks are the same headings whether you do the port or the starboard tack first. See the FAQs at http://sailtimerapp.com/FAQ.html for hints about avoiding obstructions by switching to the other tack.
● Polar plots: The app comes with a default polar plot for calculating optimal tacks (which you can edit). Plus, it can learn the custom profile for your boat's speed on different wind angles (polar plot).
● Wind gauge button in upper right when using wireless Wind Instrument shows True and Apparent Wind Angle and Direction (TWD, TWA, AWD, AWA) in True-North and Magnetic-North reference.
● Audio feedback is available by tapping screen to hear wind conditions. (More audio features are available in the SailTimer Wind Gauge app).
License Agreement: https://www.sailtimerapp.com/LicenseAgreement_Android.pdf Navionics privacy policy and terms of use: http://www.sailtimerapp.com/VectorCharts.html.
For any questions, SailTimer Tech Support is prompt and helpful: info@SailTimer.co
See our channel on Tiktok and YouTube Shorts for more background. Happy boating!
Recent changes: The crowdsourced wind maps get more features: • Tap a location on the animation to see the GRIB satellite forecast (white), and/or crowdsourced wind measurements (purple). It is fun - look for the green dotted line and target. • A new table with icons for hourly wind at your location. Tap on any of them to move the wind map ahead to that time.
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It's a useless app, no AIS, avionics is cheaper n better from OEMs. Plus No functions on the App.
★★☆☆☆Stephen Fewtrell· Feb 26, 2021
Started off with a decent marine map, which was good. I have a Avionics subscription so in the settings, I selected charts, and Avionics. The chart it brought up is next to useless and is not my Avionics subscription definition map. The App won't let me go back to the default map that it started with, even after uninstall and reinstall. I've uninstalled the App as the map is no good, not showing any Marine navigation marks. Developers, please improve maps options and Avionics interface.
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