Comparison

PocketGrib vs PredictWind

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

Head to head
About

PocketGrib

Access and analyze global weather data, including wind, precipitation, and pressure, directly on your mobile device. Visualize forecasts with animated maps and detailed graphs, perfect for outdoor activities and meteorology enthusiasts.

Highlights
  • Download and view global weather data
  • Animated weather map displays
  • Meteogram and raw data views
  • Configurable GRIB file downloads
  • Offline weather data access
  • Support for multiple weather models
Features
Currently charting
Read full description

With PocketGrib you can download, view and analyse global weather data while on the go. Wind, precipitation, pressure, temperature, wave and other data extracted from GRIB files are displayed through our powerful GRIB viewer interface. Perfect for sailors (both sailing and in the pub), windsurfers, storm chasers, outdoor enthusiasts, amateur and professional meteorologists. Features - Choose your map location and have weather information overlaid - Animation of weather maps - Weather can be viewed as a meteogram (graph) or raw data - Configurable download to minimise file sizes (great for roaming) - GRIB files can be downloaded to your PC via iTunes - Displays online and offline - Support for 3rd party GRIB files PocketGrib downloads and displays the following weather types: - Wind speed and direction (10 m above ground/sea) - Precipitation (rain, snow etc) - Pressure - Air temperature - Waves (including Mediterranean and Black Sea) - Cloud cover - Relative humidity - CAPE (Convective Atmospheric Potential Energy) - Current (Atlantic only) - 500mb Height Direct download of GRIB data from NOAA's GFS (Global Forecast System) model - Forecasts up to 8 days - Data steps: 3hr, 6hr, 12hr - Worldwide coverage - Resolution: 0.25°, 0.5°, 1°, 2° - Data updated 4 times a day (every 6 hours) Also support for COAMPS (0.2° resolution), WW3, NOGAPS, RTOFS (Currents) and FNMOC WW3 (Mediterranean wave) models. GRIB forecasts are published without human intervention or review. As such, the end user requires some knowledge and awareness. Most GRIB models do NOT accurately forecast hurricanes and tropical cyclones so their use should be combined with specific hurricane and tropical cyclone forecasts.

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

Screenshots

PocketGrib3 screens
PredictWind4 screens

Verdict

The call

The clearest difference is price: PredictWind at Free against PocketGrib's $5.99. PredictWind also leads on ratings volume (33K vs 575) and update cadence (every 11 days vs every 5 weeks). PocketGrib's advantage is in-app purchases (none vs 16) and review sentiment (95% vs 84%). On rating, ads and device support 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; PocketGrib costs $5.99 up front. PredictWind sells 16 in-app purchases, starting at $6.99 per month. PocketGrib asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for PocketGrib against 4.8 for PredictWind. That said, the two scores are not equally well evidenced: PredictWind has 33K ratings behind it against 575, so its average is the more settled of the two. Written reviews are what separate them: 95% of PocketGrib's written reviews are positive against 84% of PredictWind's.

UpkeepUpdate frequency

PocketGrib ships an update every 5 weeks, PredictWind every 11 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard8 real differences · 3 level
PocketGrib versus PredictWind: the parameters behind the verdict, then further details
ParameterPocketGribPredictWind
Price$5.99Free — better
Rating4.8 (575 ratings)4.8 (33K ratings)
Positive reviews95.3% of reviews — better84.2% of reviews
Number of ratings57533K — better
Update frequencyEvery 5 weeksEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#92#24 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better15.5
Further details — not scored
Size37 MB40 MB
Age rating4+4+
DeveloperNicko BrennanPredictWind Limited

Customer experience

PocketGrib

All ratings575 ratings
Positive97.9%
Neutral1.2%
Negative0.9%
Written reviews253 reviews
Positive95.3%
Neutral0.8%
Negative4.0%

PredictWind

All ratings32,854 ratings
Positive96.8%
Neutral2.1%
Negative1.2%
Written reviews457 reviews
Positive84.2%
Neutral3.1%
Negative12.7%

User reviews

PocketGrib

From 575 App Store ratings

What we love

  • 🚀 Easy to use
  • 🚀 Accurate weather forecasts
  • 🚀 Comprehensive data
  • 🚀 Reliable and dependable
  • 🚀 Useful for planning sailing/boating trips

Room to improve

  • 🐛 Occasional crashes or issues with downloads
  • 🐛 Wind speed sometimes underestimated
  • 🐛 Lack of wave height data for some areas

PredictWind

From 33K App Store ratings

What we love

  • 👍 Accurate weather forecasts
  • 🚀 Comprehensive data and features
  • 💡 Useful for sailing, fishing, and other outdoor activities
  • 👍 Easy to use and navigate
  • 🚀 Reliable and dependable

Room to improve

  • 🐛 Occasional inaccuracies in weather predictions
  • 💰 Expensive subscription costs
  • 🔒 Difficult to cancel subscription
  • 🔒 Locked into using proprietary hardware and services
  • 🔒 Limited free features

Bugs and requests

PocketGrib

Reported bugs

2 issues
  • Corrupted map display after recent update
  • Inability to download GRIB files in some areas

Requested features

5 requests
  • Add wave height data
  • Improve graphics and visuals
  • Provide more weather models to compare
  • Faster data updates
  • Ability to plot boat position and route

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

In-app purchases

None

PocketGrib

No 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

Questions

Is PocketGrib free?
PocketGrib costs $5.99, with no in-app purchases.
Is PredictWind free?
PredictWind is free to download, with in-app purchases available.
Which has better reviews, PocketGrib or PredictWind?
PocketGrib and PredictWind are both rated 4.8 out of 5 on the App Store, from 575 and 33K ratings respectively.
Do PocketGrib or PredictWind have ads?
Neither PocketGrib nor PredictWind shows ads.
Which is updated more often, PocketGrib or PredictWind?
PocketGrib ships an update every 5 weeks, and PredictWind every 11 days. Most recently, PocketGrib was updated on October 12, 2026 and PredictWind on October 14, 2026.
Which is more popular, PocketGrib or PredictWind?
PocketGrib currently peaks at #92 in the App Store charts, and PredictWind at #24. Chart position reflects recent download velocity rather than total install base.

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