Comparison

SailFlow vs Ruuvi Station

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

Ruuvi Station

Monitor environmental data from wireless sensors. Visualize temperature, humidity, and air pressure with customizable graphs and alerts. Manage your devices and access historical data through the cloud.

Highlights
  • Monitor sensor data (temperature, humidity, pressure)
  • Visualize data with graphs
  • Set custom alerts
  • Manage Ruuvi devices
  • Access Ruuvi Cloud data
  • Use mobile widgets
Features
Read full description

Ruuvi Station is an easy-to-use application that allows you to monitor the measurement data of Ruuvi's sensors. Ruuvi Station collects and visualises Ruuvi sensor data, such as temperature, relative air humidity, air pressure and movement from local Bluetooth Ruuvi sensors and Ruuvi Cloud. Additionally, Ruuvi Station allows you to manage your Ruuvi devices, set alerts, change background photos, and visualise the gathered sensor information through graphs. How does it work? Ruuvi sensors send tiny messages over Bluetooth, which can then be picked up by nearby mobile phones or specialised Ruuvi Gateway routers. Ruuvi Station mobile app enables you to collect and visualise this data on your mobile device. Ruuvi Gateway, on the other hand, routes the data over the internet not only to the mobile application but also to the browser application. Ruuvi Gateway routes the sensor measurement data directly to the Ruuvi Cloud cloud service, which enables you to build a complete remote monitoring solution including remote alerts, sensor sharing and history in Ruuvi Cloud – all available within the Ruuvi Station app! Ruuvi Cloud users can view longer measurement history by using the browser application. Use our customisable Ruuvi mobile widgets alongside the Ruuvi Station app when data is fetched from Ruuvi Cloud to view selected sensor data at a glance. Above features are available to you if you are a Ruuvi Gateway owner or have received a shared sensor to your free Ruuvi Cloud account. To use the app, get Ruuvi sensors from our official website: ruuvi.com Available in English, Finnish, Swedish, French, and German.

Screenshots

SailFlow4 screens
Ruuvi Station4 screens

Verdict

The call

SailFlow and Ruuvi Station both sit at 4.7 stars, but that hides the real split: 84% of SailFlow's written reviews are positive against 43% of Ruuvi Station's. SailFlow also leads on ratings volume (5.9K vs 85) and chart position (#44 vs unranked). Ruuvi Station's advantage is in-app purchases (none vs 10). On price, rating, update cadence and 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

Both are free to download. SailFlow sells 10 in-app purchases, starting at $3.99 per month. Ruuvi Station asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SailFlow holds the better App Store score, 4.7 against 4.6. That said, the two scores are not equally well evidenced: SailFlow has 5.9K ratings behind it against 85, so its average is the more settled of the two. Written reviews point the same way: 84% of SailFlow's written reviews are positive against 43% of Ruuvi Station's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 5 level
SailFlow versus Ruuvi Station: the parameters behind the verdict, then further details
ParameterSailFlowRuuvi Station
PriceFreeFree
Rating4.7 (5.9K ratings) — better4.6 (85 ratings)
Positive reviews84.1% of reviews — better42.9% of reviews
Number of ratings5.9K — better85
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#44 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size137 MB81 MB
Age rating4+4+
DeveloperWeatherFlowRuuvi Innovations Ltd. (Oy)

Customer experience

SailFlow

All ratings5,827 ratings
Positive96.6%
Neutral1.8%
Negative1.7%
Written reviews364 reviews
Positive84.1%
Neutral4.1%
Negative11.8%

Ruuvi Station

All ratings84 ratings
Positive90.5%
Neutral2.4%
Negative7.1%
Written reviews28 reviews
Positive42.9%
Neutral10.7%
Negative46.4%

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

Ruuvi Station

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

Ruuvi Station

No in-app purchases

Questions

Is SailFlow free?
SailFlow is free to download, with in-app purchases available.
Is Ruuvi Station free?
Ruuvi Station is free to download, with no in-app purchases.
Which has better reviews, SailFlow or Ruuvi Station?
SailFlow is rated higher. SailFlow averages 4.7 out of 5 from 5.9K ratings, while Ruuvi Station averages 4.6 from 85 ratings.
Do SailFlow or Ruuvi Station have ads?
Neither SailFlow nor Ruuvi Station shows ads.
Which is updated more often, SailFlow or Ruuvi Station?
SailFlow ships an update every 3 weeks, and Ruuvi Station every 3 weeks. Most recently, SailFlow was updated on November 1, 2026 and Ruuvi Station on October 29, 2026.

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