Comparison

SailFlow vs DawnTracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SailFlow

Get hyper-accurate, real-time marine weather forecasts and live wind reports. This app uses proprietary weather systems and integrates public data for detailed wind, wave, tide, and radar information. Customize alerts and track your favorite sailing spots.

Highlights
  • Proprietary Tempest Weather Systems
  • Live wind and current station reports
  • AI-enhanced Nearcast forecasting
  • Radar, satellite, and precipitation maps
  • Tides charts and wave height
  • Customizable wind notifications
  • Nautical charts
Features
Currently charting
Read full description

Whether you’re racing, cruising, day sailing, you need precise sailing forecasts and real-time wind. SailFlow delivers both. Powered by 90,000+ exclusive Tempest Weather Stations and 150,000+ total sources, SailFlow’s weather and wind app delivers unmatched accuracy. With stations on buoys, piers, and key waterfront locations, you get real conditions exactly where you sail. Plan with confidence using our Tempest Rapid Refresh Model combined with government data to deliver industry-leading Nearcast AI predictions. Then go deeper with radar, high-resolution forecast maps, and fully customizable alerts so you never miss a session. Real wind. Better sails. - Coastal observations from proprietary Tempest Weather Systems along with all public domain marine forecasts and reports (NOAA, NWS, METAR, ASOS, CWOP) including all major airports creating over 150,000 unique stations. - Exclusive Tempest Weather Systems deployed at key coastal locations report wind, rain, barometric pressure and more than 24 other weather observations. - Apple Watch compatibility - Live wind from our stations support powerful wind flow visualization – augmented by current station reports with advanced quality control. - Our Proprietary AI-enhanced Nearcast provides enhanced forecasting for temperature, wind gust, speed, direction, humidity, dewpoint, precipitation rate, probability of precipitation, and cloud cover percentage which is perfect for sailing. - Public domain forecast models including High Resolution Rapid Refresh (HRRR), North American Mesoscale Forecast System (NAM), Global Forecast System (GFS), Canadian Meteorological Centre Model (CMC) and Icosahedral Non Hydrostatic Model (ICON). - Create your own favorite station list to keep an eye on your go-to weather stations at all your marine and sailing spots. Check the tides in minutes so you never miss a day on the water. - Maps: Live and Forecasted Wind Map, Forecasted Temperature, Radar, Satellite, Precipitation and Clouds, as well as Nautical Charts. - Free subscription for unlimited wind notifications/alerts with customizable thresholds to email, text, or in-app. - Monitor National Weather Service (NWS) Marine forecasts, high surf warnings, and other to better anticipate waves and current conditions, for safer, more informed decisions on the water. Additional weather parameters: - Tides charts - Wave height, wave period - Water temperature - Sunrise / sunset - Moonrise / moonset - Historical wind statistics - Windy days per month - Wind direction distribution Go Beyond the Basics: Upgrade to Plus, Pro, or Gold membership to gain access to more weather stations, ad-free browsing, and more. - Access exclusive Pro and hurricane-proof stations at premier coastal locations and unlock SailFlow’s hyper-accurate Pro forecasts, updated daily by expert meteorologists for sailing hotspots coast to coast. - Detailed weather at points of interest to coastal residents and property owners near the ocean, rivers, and other bodies of water. On the water features: - Sea surface temperatures - Sea surface currents - Detailed historical wind statistics - Historical wind speed average by year Does your spot need a station? Join the Tempest Weather Network! Get a Tempest Weather System for your club, dock, or backyard. Get support: help.weatherflow.com/hc/en-us/categories/200419268-iKitesurf-iWindsurf-SailFlow-FishWeather-WindAlert Connect with Tempest: - facebook.com/tempestwx - twitter.com/tempest_wx - youtube.com/@tempestwx - instagram.com/tempest.earth Contact Tempest: help.weatherflow.com/hc/en-us/requests/new Website: tempest.earth By purchasing a subscription or downloading SailFlow you agree that you have read and accept our Privacy Policy and Terms of Use. got.wf/privacy got.wf/terms

About

DawnTracker

This app calculates precise times for sunrise, sunset, and various twilight periods for any location and date. It's useful for photographers planning shoots or anyone wanting to know daily solar event timings.

Highlights
  • Sunrise, solar noon, and sunset times
  • Civil, nautical, and astronomical twilight
  • Golden and blue hour calculations
  • Day length estimation
  • Offline functionality
  • Supports favorite cities
Features
Read full description

When will the sun rise today in Paris? How long does the Golden Hour last tomorrow in Hamburg? And what time will civil dawn begin, 3 months from now, in New York City? DawnTracker calculates solar events (sunrise, sunset, dawn, dusk, golden & blue hour etc.) for your current location and your favorite cities. A handy little tool if you're trying to capture the perfect sunset or simply want to know when the sun will set today. * Pick any date and any city to get info * Sunrise, Solar Noon and Sunset * Civil, Nautical and Astronomical Twilight * Golden & blue hour * Day length * Beginning and end of night * Calculations based on location data. Doesn't need internet connection. Doesn't share data. Available for iPhone and Apple Watch. Privacy policy: https://wxt.media/apps/privacy/

Screenshots

SailFlow4 screens
DawnTracker3 screens

Verdict

The call

The clearest difference is price: SailFlow at Free against DawnTracker's $2.99. SailFlow also leads on ratings volume (5.8K vs 1) and chart position (#39 vs unranked). DawnTracker's advantage is in-app purchases (none vs 10) and update cadence (every 3 days vs every 3 weeks). On ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

SailFlow is free to download; DawnTracker costs $2.99 up front. SailFlow sells 10 in-app purchases, starting at $3.99 per month. DawnTracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DawnTracker holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SailFlow has 5.8K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

SailFlow ships an update every 3 weeks, DawnTracker every 3 days. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

Scorecard9 real differences · 2 level
SailFlow versus DawnTracker: the parameters behind the verdict, then further details
ParameterSailFlowDawnTracker
PriceFree — better$2.99
Rating4.7 (5.8K ratings)5.0 (1 ratings) — better
Positive reviews84.1% of reviews—
Number of ratings5.8K — better1
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#39 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.0 — better26.0
Further details — not scored
Size137 MB3 MB
Age rating4+4+
DeveloperWeatherFlowInes Opifanti

Customer experience

SailFlow

All ratings5,827 ratings
Positive96.6%
Neutral1.8%
Negative1.7%
Written reviews359 reviews
Positive84.1%
Neutral4.2%
Negative11.7%

DawnTracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

SailFlow

Reported bugs

3 issues
  • Recent update caused app to crash
  • Favorites list not working properly
  • Wind direction arrow pointing incorrectly

Requested features

5 requests
  • Add more local weather stations
  • Improve map and location search
  • Provide more forecast models
  • Add support for Apple Watch
  • Fix wind direction arrow issue

DawnTracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

SailFlow

Subscriptions10
  • Plus$3.991 Month
  • Plus7 Days trial$5.491 Month
  • Gold$14.991 Month
Show 7 more
  • Pro7 Days trial$14.991 Month
  • Pro - Pay As You Go (auto-renewing)$19.991 Month
  • Gold7 Days trial$21.991 Month
  • Plus$44.991 Year
  • Plus7 Days trial$44.991 Year
  • Pro7 Days trial$119.991 Year
  • Gold$179.991 Year
None

DawnTracker

No in-app purchases

Questions

Is SailFlow free?
SailFlow is free to download, with in-app purchases available.
Is DawnTracker free?
DawnTracker costs $2.99, with no in-app purchases.
Which has better reviews, SailFlow or DawnTracker?
DawnTracker is rated higher. SailFlow averages 4.7 out of 5 from 5.8K ratings, while DawnTracker averages 5.0 from 1 ratings.
Do SailFlow or DawnTracker have ads?
Neither SailFlow nor DawnTracker shows ads.
Which is updated more often, SailFlow or DawnTracker?
SailFlow ships an update every 3 weeks, and DawnTracker every 3 days. Most recently, SailFlow was updated on October 14, 2026 and DawnTracker on October 12, 2026.

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