Comparison

PredictWind vs SailWindow

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

Head to head
About

PredictWind

Get accurate marine weather forecasts and powerful tools for wind, waves, and currents. Plan your trips with routing and departure planning features, and stay informed with live observations and alerts. Ideal for all marine activities.

Highlights
  • Accurate marine weather forecasts
  • Wind, wave, and current data
  • Weather routing and departure planning
  • High-resolution marine weather maps
  • Live wind observations and webcams
  • Weather alerts
Features
Read full description

Accurate marine weather forecasts and powerful tools utilizing wind, wave and currents, save you time, keep you safe and ensure you get the most out of every day on the water. Access the world’s top-ranking forecast models for reliable and accurate wind and weather data, including ECMWF, AIFS, ICON, UKMO, GFS, and more. Our very own PWAi, PWG & PWE models deliver unmatched accuracy in the short-to-medium range. View high resolution marine weather maps for wind, gust, CAPE, wave, rain, cloud, pressure, air temperature, sea temperature, ocean data and solunar. Suitable for sailing yacht, powerboat and any other marine weather activity. In addition to marine forecasts, PredictWind also provides a suite of powerful marine weather tools to save you time and keep you safe at sea using Wind, Wave, Tidal and Ocean currents. Weather Routing takes your start and end points then calculates your route factoring in tides, currents, wind and wave data, depth and your Sailing Yacht or Powerboats unique dimensions to give you the best route for comfort or speed. Departure Planning quickly summarizes the forecast marine weather conditions you’ll encounter along your route if leaving on day 1, 2, 3, or 4. Use this data to select the perfect departure date, every time for your Sailing Yacht or Powerboat. ADDITIONAL FEATURES - Daily Briefing: Powerful marine weather data condensed into a simple text forecast. - Maps: High resolution forecasts maps with animated streamlines, wind barbs or arrows. - Tables: The ultimate dashboard for detailed analysis of Wind, Wave, Rain and more. - Graphs: Compare multiple marine forecasts at the same time. - Live Wind Observations and Webcams: Know what’s happening with the weather right now at your local spot. - Local Knowledge: Hear about the best marine spots, amenities and activities at your destination. - Weather Alerts: Set your preferences then get alerts when conditions are just the way you like them for Wind, wave and other parameters. - Ocean Data: See what’s happening under the waves with ocean and tidal currents, and sea temperature. - GPS Tracking: Get a free customized GPS tracking page for your blog or website showing wind data overlaid. - AIS Data: View over 280,000 vessels worldwide on the AIS network to see marine traffic. Terms and conditions: https://www.predictwind.com/about-us/terms-and-conditions
 Privacy policy: https://www.predictwind.com/about-us/privacy-policy

About

SailWindow

This app provides sailors with a focused marine weather view, combining forecast conditions, alerts, and buoy observations. It helps users quickly assess if conditions are good, questionable, or unsafe for sailing.

Highlights
  • Sailing window summary (Good, Caution, No-Go)
  • NOAA marine forecast text
  • Wind, wave, and temperature charts
  • Active marine and weather alerts
  • Nearby buoy observations
  • Saved sailing locations
  • Local notification rules
Currently charting
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SailWindow helps sailors quickly understand whether the next few hours look good, questionable, or unsafe on the water. Choose a sailing location and get a focused marine weather view built from NOAA, NWS, and NDBC data. SailWindow combines forecast conditions, active marine alerts, nearby buoy observations, and NOAA marine text forecasts into a clear summary for planning your time on the water. Features include: • Sailing window summary with Good, Caution, and No-Go conditions • NOAA marine forecast text matched automatically to your selected location • Wind, gust, wave height, wave period, wave direction, temperature, rain, and thunder risk charts when available • Active marine and weather alerts • Nearby NOAA/NDBC station and buoy observations • Station map with selectable buoy markers • Saved sailing locations • Local notification rules for changing conditions SailWindow is designed for pre-sail planning and situational awareness. Weather and marine conditions can change quickly. Always check official sources, local conditions, and required safety equipment before going out.

Screenshots

PredictWind4 screens
SailWindow4 screens

Verdict

The call

The clearest difference is price: PredictWind at Free against SailWindow's $0.99. PredictWind also leads on ratings volume (33K vs 2) and device support (3 vs 1). SailWindow's advantage is in-app purchases (none vs 16) and rating (5.0 vs 4.8). On 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

PredictWind is free to download; SailWindow costs $0.99 up front. PredictWind sells 16 in-app purchases, starting at $6.99 per month. SailWindow asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SailWindow holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: PredictWind has 33K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

PredictWind ships an update every 11 days, SailWindow every 5 days. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

Scorecard8 real differences · 3 level
PredictWind versus SailWindow: the parameters behind the verdict, then further details
ParameterPredictWindSailWindow
PriceFree — better$0.99
Rating4.8 (33K ratings)5.0 (2 ratings) — better
Positive reviews84.3% of reviews—
Number of ratings33K — better2
Update frequencyEvery 11 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#24 — better#84
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better18.0
Further details — not scored
Size40 MB3 MB
Age rating4+4+
DeveloperPredictWind LimitedDIMITRY BRAZNICHENKO

Customer experience

PredictWind

All ratings32,854 ratings
Positive96.8%
Neutral2.1%
Negative1.2%
Written reviews459 reviews
Positive84.3%
Neutral3.1%
Negative12.6%

SailWindow

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

PredictWind

Reported bugs

3 issues
  • App crashes or freezes on some devices
  • Inconsistent performance across different locations
  • Subscription issues and billing problems

Requested features

5 requests
  • Improved integration with other apps and charts
  • More frequent weather model updates
  • Earlier weather forecast updates
  • Ability to customize alert settings
  • Improved offline functionality

SailWindow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

PredictWind

Subscriptions11
  • Basic - Monthly7 Days trial$6.991 Month
  • Basic - 3 Monthly$12.003 Months
  • Basic - 3 Monthly7 Days trial$12.003 Months
Show 8 more
  • Basic - Annual7 Days trial$29.001 Year
  • Standard - Monthly7 Days trial$49.001 Month
  • Standard - 3 Monthly$99.003 Months
  • Professional - Monthly7 Days trial$99.001 Month
  • Standard - 3 Monthly7 Days trial$99.003 Months
  • Standard - Annual7 Days trial$249.001 Year
  • Professional - 3 Monthly7 Days trial$249.003 Months
  • Professional - Annual7 Days trial$499.001 Year
One-time5
  • Basic Subscription, 1 Month$3.99
  • Basic Subscription, 3 Months$11.99
  • Basic Subscription, 12 Months$28.99
Show 2 more
  • Standard Subscription, 1 Month$48.99
  • Professional Subscription, 1 Month$99.99
None

SailWindow

No in-app purchases

Questions

Is PredictWind free?
PredictWind is free to download, with in-app purchases available.
Is SailWindow free?
SailWindow costs $0.99, with no in-app purchases.
Which has better reviews, PredictWind or SailWindow?
SailWindow is rated higher. PredictWind averages 4.8 out of 5 from 33K ratings, while SailWindow averages 5.0 from 2 ratings.
Do PredictWind or SailWindow have ads?
Neither PredictWind nor SailWindow shows ads.
Which is updated more often, PredictWind or SailWindow?
PredictWind ships an update every 11 days, and SailWindow every 5 days. Most recently, PredictWind was updated on October 16, 2026 and SailWindow on September 26, 2026.
Which is more popular, PredictWind or SailWindow?
PredictWind currently peaks at #24 in the App Store charts, and SailWindow at #84. Chart position reflects recent download velocity rather than total install base.

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