SailFlow vs NOAA Buoy Reports & Ship Data
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
NOAA Buoy Reports & Ship Data
Access detailed buoy and ship observation data without weather forecasts or tide information. View current conditions, historical trends, and storm locations on an intuitive map. Monitor your favorite locations with customizable widgets.
- Intuitive map interface
- Quick-view Favorites
- Tropical Storm/Hurricane/Cyclone locations
- Full buoy current conditions
- Past buoy data (Premium)
- Interactive graphs
- Home Screen Widgets
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NOAA Buoy Reports is the no-nonsense app focused exclusively on real-time buoy and ship observations worldwide - without the clutter of tide or weather forecasts. NOAA Buoy Reports includes: • Intuitive map interface • Quick-view Favorites • Locations of Tropical Storms, Hurricanes, and Cyclones from the NHC • Full buoy current conditions (always free) • Ship observations (free preview) • Buoy Cams (free preview) • Past buoy data up to 45 days (Premium feature) • Wave heights and directions (when available) • Wind, gusts, and directions (when available) • Air and Water temperatures (when available) • Atmospheric pressure (when available) • Interactive graphs • Add your own Wind, Wave, or Temperature graph levels • Units in Metric or English • Readings in your local time • Share data via iMessage, Email, Facebook, etc. • Full Dark Mode support • Home Screen, Lock Screen, and StandBy Mode Widgets to monitor your favorites Coverage includes more than 1000 buoys and 200 ships worldwide, spanning the Atlantic and Pacific Oceans near the U.S. and Canada, the Great Lakes, the Caribbean, and waters around Ireland and Great Britain. Simply tap any buoy or ship on the map to view its latest reported conditions. Tap again for a full summary or an interactive graph of recent trends, so you can see not only what’s happening now, but how conditions have changed over time. Add favorites to quickly view the locations that matter most to you, and monitor them anytime with the included widgets. This app DOES NOT provide tide data, or maritime or other weather forecasts. There are dedicated apps for these from other publishers that do an excellent job. This app specializes exclusively in buoy and ship observation data. Please note that not all buoys have all types of data available, and buoys do experience intermittent outages — a life at sea can be harsh! Additionally, note that some buoys may be seasonal, and may be physically removed from the water during winter months, such as in the Great Lakes. Raw source data courtesy of NOAA, National Data Buoy Center (NDBC), and the National Hurricane Center (NHC). Juggernaut Technology, Inc. is not associated with NOAA, NDBC, NHC, or any other government organization. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is ads: SailFlow at none against NOAA Buoy Reports & Ship Data's shown. SailFlow also leads on review sentiment (84% vs 74%) and device support (4 vs 2). On price, rating, ratings volume and update cadence 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
Both are free to download. SailFlow sells 10 in-app purchases, starting at $3.99 per month and NOAA Buoy Reports & Ship Data sells 2 in-app purchases, starting at $7.99 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for SailFlow against 4.7 for NOAA Buoy Reports & Ship Data. Both are backed by a comparable volume of ratings — 5.8K and 2.5K respectively. Written reviews are what separate them: 84% of SailFlow's written reviews are positive against 74% of NOAA Buoy Reports & Ship Data's.
SailFlow ships an update every 3 weeks, NOAA Buoy Reports & Ship Data every 2 weeks. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.
| Parameter | SailFlow | NOAA Buoy Reports & Ship Data |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (5.8K ratings) — better | 4.7 (2.5K ratings) |
| Positive reviews | 84.2% of reviews — better | 73.5% of reviews |
| Number of ratings | 5.8K — better | 2.5K |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #37 — better | #137 |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 137 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | WeatherFlow | Juggernaut Technology, Inc. |
Customer experience
SailFlow
NOAA Buoy Reports & Ship Data
User reviews
SailFlow
From 5.8K App Store ratingsWhat we love
- 🚀 Easy to navigate
- 🚀 Accurate wind forecasts
- 🚀 Helpful for planning
- 🚀 Great data and graphics
- 🚀 Reliable and trustworthy
Room to improve
- 🐛 Occasional inaccurate forecasts
- 🐛 Crashes or freezes
- 💰 Expensive subscription
- 🔍 Difficult to find specific locations
- 🔍 Confusing interface at times
NOAA Buoy Reports & Ship Data
From 2.5K App Store ratingsWhat we love
- 🚀 Critical infrastructure
- 🚀 Excellent source of sea conditions
- 🚀 Valuable buoy information
- 👍 Plenty of information
- 👍 Great app
Room to improve
- 🐛 More data needed
- 🐛 Incomplete and inaccurate
- 🐛 Wave height data not working
- 🐛 No buoy reports
- 🐛 No wave data
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
NOAA Buoy Reports & Ship Data
Reported bugs
4 issues- Buoy data not available most of the time
- Ships rarely contribute data
- Wave height data missing for certain areas
- Upgraded version still doesn't work
Requested features
4 requests- GPS coordinates for buoys
- Ability to filter by data type
- Display past wave heights
- Bring back removed buoys
In-app purchases
SailFlow
- Plus$3.991 Month
- Plus7 Days trial$5.491 Month
- Gold$14.991 Month
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- 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
NOAA Buoy Reports & Ship Data
- Pro Annual Subscription$7.991 Year
- Buoy Reports Premium$29.99
Questions
Is SailFlow free?
Is NOAA Buoy Reports & Ship Data free?
Which has better reviews, SailFlow or NOAA Buoy Reports & Ship Data?
Do SailFlow or NOAA Buoy Reports & Ship Data have ads?
Which is updated more often, SailFlow or NOAA Buoy Reports & Ship Data?
Which is more popular, SailFlow or NOAA Buoy Reports & Ship Data?
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