Comparison

PredictWind vs CoastWarn

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

CoastWarn

Receive timely alerts for coastal flooding based on your custom water-level thresholds. Monitor NOAA data, get tide charts, and stay informed about potential flood events affecting your property or boat.

Highlights
  • Customizable flood alert thresholds
  • NOAA water-level monitoring
  • Tide charts and predictions
  • Flood expected notifications
  • Alert history
  • Station map search
Features
Read full description

CoastWarn monitors official NOAA water-level data and alerts you when observed levels reach the threshold you set. If you live, work, or keep a boat on the coast, you know the drill: nuisance flooding that soaks your car, a dock line that needs more slack, a driveway that disappears at high tide. CoastWarn helps you keep track of the water levels that matter to you. HOW IT WORKS - Find a supported NOAA station using your ZIP code or the station map. - Set the water-level threshold that matters to your property or boat. - Receive flood alerts and all-clear notifications, with current readings and trends. - See “Flood Expected” notices when supported regional forecasts predict your threshold will be reached. BUILT FOR COASTAL REALITY - Official NOAA CO-OPS water-level observations and tide predictions. - Adjustable alert thresholds at eligible stations. - Time-sensitive notifications for minor-or-higher flood alerts, subject to your iPhone’s notification settings. - Tide charts and regional model projections where available. - Alert history, monitoring status, and notices when monitoring is interrupted. WHO IT’S FOR Waterfront homeowners · boaters and marina tenants · coastal businesses · anyone who lives with a rising tide TRY IT FREE CoastWarn is free for 7 days. Continue with CoastWarn Pro Lifetime: a single $19.99 purchase that unlocks the app’s features with no subscription or renewal. No user account required. Restore Purchases is available in Settings. Data, forecasts, and alert monitoring vary by station. Alert delivery depends on current data, connectivity, notification permissions, and iOS scheduling. CoastWarn supplements official warnings; always follow National Weather Service guidance and local emergency instructions.

Screenshots

PredictWind4 screens
CoastWarn4 screens

Verdict

The call

The clearest difference is ratings volume: PredictWind at 33K against CoastWarn's 1. PredictWind also leads on chart position (#25 vs unranked) and device support (3 vs 1). CoastWarn's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases 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. PredictWind sells 16 in-app purchases, starting at $6.99 per month and CoastWarn sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CoastWarn 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 1, so its average is the more settled of the two.

UpkeepUpdate frequency

PredictWind ships an update every 9 days, CoastWarn every 6 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 6 level
PredictWind versus CoastWarn: the parameters behind the verdict, then further details
ParameterPredictWindCoastWarn
PriceFreeFree
Rating4.8 (33K ratings)5.0 (1 ratings) — better
Positive reviews84.2% of reviews—
Number of ratings33K — better1
Update frequencyEvery 9 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#25 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size40 MB3 MB
Age rating4+4+
DeveloperPredictWind LimitedRyan Dean

Customer experience

PredictWind

All ratings32,793 ratings
Positive96.8%
Neutral2.0%
Negative1.2%
Written reviews457 reviews
Positive84.2%
Neutral3.1%
Negative12.7%

CoastWarn

All ratings1 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

CoastWarn

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
1 purchases

CoastWarn

One-time1
  • CoastWarn Lifetime Unlock$19.99

Questions

Is PredictWind free?
PredictWind is free to download, with in-app purchases available.
Is CoastWarn free?
CoastWarn is free to download, with in-app purchases available.
Which has better reviews, PredictWind or CoastWarn?
CoastWarn is rated higher. PredictWind averages 4.8 out of 5 from 33K ratings, while CoastWarn averages 5.0 from 1 ratings.
Do PredictWind or CoastWarn have ads?
Neither PredictWind nor CoastWarn shows ads.
Which is updated more often, PredictWind or CoastWarn?
PredictWind ships an update every 9 days, and CoastWarn every 6 days. Most recently, PredictWind was updated on October 13, 2026 and CoastWarn on October 3, 2026.

Other comparisons