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SailFlow: Sailing Forecasts

WeatherFlow · Weather · Japan store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
+5
in 4 days, 6.5K in total
Rating
4.8 of 5
8 ratings in this store
Countries it ranks in
3
was 5 on Oct 19, 2026

Revenue

Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Too small to estimate
It only ranks in small categories, where no app reaches the overall top 100, so there is no reliable figure. Under about $4.4M a month (estimate), usually far less.
EST. LIFETIME DOWNLOADS
280 to 800
Estimated from ratings count
RATINGS
8
AVG RATING
4.75
PRICE
無料
AGE
14.0y
LAST UPDATE
12d ago
VERSION
7.14
SIZE
137 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart and daily ratings counts.

DAYS IN A GROSSING CHART
30 / 30
COUNTRIES NOW
3 (was 2)
NEW RATINGS, LAST 4 DAYS
+5
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
Sep 27, 2026not in a grossing chart
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Oct 1, 2026not in a grossing chart
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Oct 26, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 27, 2026: #50 Weather · US. Now: #41 Weather · US.
RATINGS IN THE CORE COUNTRIES, DAILY
Show daily values
Oct 22, 20266.5K ratings
Oct 23, 20266.5K ratings
Oct 24, 20266.5K ratings
Oct 25, 20266.5K ratings
Oct 26, 20266.5K ratings
6.5K on Oct 22, 2026, 6.5K on Oct 26, 2026. New ratings track new downloads, even outside the charts.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
1.2 reviews / week
  • Trendfalling
  • Recent reviews average4.5 stars
  • Recent 1 and 2 star share9%
From the latest 500 written reviews, covering 2994 days. The store only returns this many, so this is the most recent slice.
RELEASE CADENCE
5 updates in 90 days
  • Typical gap between releases22 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
8 ratings
5★75%
4★25%
3★0%
2★0%
1★0%

What users want

From the latest 500 reviews on the Japan App Store, Aug 15, 2018 to Oct 23, 2026: 9% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Price and subscription25%

11 of the 1 and 2 star reviews.

★★★★★ Used to enjoy this app very easy to use, but unfortunately this year they hid everything behind a paywall so all the stations you were getting for free now you have to pay for.
★★★★★ I will be cancelling my subscription and moving to Windy.
★★★★★ I purchased the $49.00 a year and it turns out where I sail mission Bay in San Diego you need a Pro subscription?
Worse after an update14%

6 of the 1 and 2 star reviews.

★★★★★ Latest update is really messed up - all favorites lost, zoom controls cause map to jump around the world.
★★★★★ Less than 2 weeks later an update was issued and the maps and weather stations, in my area of Alaska, don't function correctly.
★★★★★ Update#2: [My comments] The developer responded, saying “ Wind direction is always reported on where the winds are coming from.
Crashes and freezes11%

5 of the 1 and 2 star reviews.

★★★★★ Current version of the app crashes whenever I go into the menu to change settings or preferences.
★★★★★ Nothing worse than an auto updating app that crashes on launch.
★★★★★ Latest update causes app to freeze and become unresponsive.
Bugs, things not working9%

4 of the 1 and 2 star reviews.

★★★★★ The graphics are terrible and hard to see
★★★★★ Keep the arrows pointing as they are, just label them correctly!!] Update: this issue is still broken.
★★★★★ If I enter my location it says there's an error.
Lost data, sync, backup9%

4 of the 1 and 2 star reviews.

★★★★★ SailFlow, you have just lost a user.
★★★★★ Latest update is really messed up - all favorites lost, zoom controls cause map to jump around the world.
★★★★★ Sorry to see that a recurring subscription is now required. This had been a useful app for my occasional sailing. I would have upgraded when I started to sail more frequently—however, I will find another source now.
Wrong or poor results9%

4 of the 1 and 2 star reviews.

★★★★★ It's pointed in the right direction, but it's labeled wrong!!
★★★★★ During California's many winter storms of late 2022 and early 2023 this app was *highly* inaccurate in its wind predictions.
★★★★★ I'm frustrated. Live wind, graphs and other data sets would be great to use, but they are completely unreadable on an iPhone. It is scaled for reading on a 24” Hi-Rez monitor or at least a very large iPad. You can't…
Limits, credits, locked features5%

2 of the 1 and 2 star reviews.

★★★★★ Had exactly same thing happen and it locked up asking me to upgrade to Pro.
★★★★★ Used to enjoy this app very easy to use, but unfortunately this year they hid everything behind a paywall so all the stations you were getting for free now you have to pay for.
Login and account problems5%

2 of the 1 and 2 star reviews.

★★★★★ For $22/mo this app should work better. I recommend staying away from this app.
★★★★★ However, it is now an unusable menu because every time I click on a station, it asks me to upgrade my account or sign in.
WHAT THEY ASK FOR
  • I purchased the $49.00 a year and it turns out where I sail mission Bay in San Diego you need a Pro subscription? 1★, Apr 14, 2026
  • There is only one station on the platinum level I need and I can't justify the price for a single weather station. 3★, Apr 13, 2026
  • I wish you could jump days ahead like you could before 5★, Dec 24, 2025
  • If you boat, you should have this app 5★, Jul 6, 2022
  • I love Sailflow but would love to have a Apple Watch face to see current/ forecast data. 5★, Apr 14, 2022
  • It would be great to have forecast wind speed in the app. 4★, Aug 19, 2021
  • Wish there were more points for some of the local lakes in the free version. 4★, Jul 9, 2021
  • Wish it had an Apple Watch complication. 5★, Feb 26, 2021
WORDS THAT KEEP COMING UP IN BAD REVIEWS
last week3latest update3free version4
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Accurate, great results25%

109 of the 4 and 5 star reviews.

★★★★★ I find SailFlow provides the most accurate wind prediction for the Chesapeake Bay.
★★★★★ Works great to see rollers and how high they are.
★★★★★ One of the best weather apps I have, and most accurate!
Useful, it helps16%

69 of the 4 and 5 star reviews.

★★★★★ The forecast helps me plan my fishing trips.
★★★★★ The support is legitimately helpful.
★★★★★ Helps us take advantage of the good days!
Easy to use13%

55 of the 4 and 5 star reviews.

★★★★★ I'm very happy SailFlow. My other sailor friends use a different app, but I consistently feel like this one is more accurate predicting the weather on our sailing days.
★★★★★ Not easy to see the map and the wind even when trying to adjust the penetration filter.
★★★★★ I really appreciate the detailed easy to understand graphics for the marine conditions forecasts Thanks !!!
Worth the money3%

13 of the 4 and 5 star reviews.

★★★★★ I love that you can see all the tide charts and all of the data for free
★★★★★ Free version is better…it said it was gusting 2 and sustaining 20 knots though…It was blowing 4kts maybe.overall pretty good.
★★★★★ I've been a Sail Flow PRO user for a few years (free user prior) and it is excellent.
Fun, addictive3%

11 of the 4 and 5 star reviews.

★★★★★ I enjoy the advantages of pulling up this app and forecasting the upcoming winds.
★★★★★ Helps me determine which jib to use and whether I will even sail and which friends would enjoy it with us !
★★★★★ Makes my time fishing much more enjoyable.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Japan App Store.

★★★★★Oct 23, 2026
Go to quick wind app

Simple to use

★★★★★Oct 22, 2026
Same problem as Sautag

Had exactly same thing happen and it locked up asking me to upgrade to Pro. Won’t let me in on free version. Don’t use enough to warrant fee for extras. Was good the way it was.

★★★★★Oct 5, 2026
David Tinsley

Great app to see weather conditions at a glance. The forecast helps me plan my fishing trips. I know when to go and most importantly when not to go.

★★★★★Oct 1, 2026
His the best stations behind a paywall

Used to enjoy this app very easy to use, but unfortunately this year they hid everything behind a paywall so all the stations you were getting for free now you have to pay for. I will be deleting and finding weather elsewhere.

★★★★★Sep 16, 2026
My go-to app for sailing forecast

I find SailFlow provides the most accurate wind prediction for the Chesapeake Bay.

★★★★★Sep 2, 2026
Pretty good

It’s works pretty well the future wind forecast is nice but it’s annoying you have to pay money to get all the wind stations.

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

wind13weather12tempest11tempest weather8stations7sailing5sailflow5water5weather stations5historical wind5forecasts4forecast4coastal4exclusive tempest3rapid refresh3high resolution3never miss3weather systems3public domain3marine forecasts3coastal locations3forecast system3wind statistics3sea surface3

What's new in 7.14

Optimized for iOS 27 and the new iPhone Duo. New split-screen views on Duo and iPad let you browse lists and maps alongside a location’s full weather report. Available in Wind List, Pro Forecasts, Favorites, and Maps.

Released Oct 18, 2012. Current version shipped Oct 14, 2026.

Store 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

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