Comparison

LuckGrib vs NOAA Forecast

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

Head to head
About

LuckGrib

This app provides advanced weather data visualization, downloading, and routing for sailors and weather enthusiasts. It offers access to a wide range of global and high-resolution weather and ocean models, with features for optimizing routes and analyzing complex weather parameters. Remote access via satellite is also supported.

Highlights
  • GRIB file reader, viewer, and downloader
  • Advanced weather routing and route analysis
  • Satellite data access
  • High-resolution global and regional weather models
  • Ocean current models
  • Detailed weather parameter analysis
Features
Currently charting
Read full description

LuckGrib is a fully featured, easy to use, fast GRIB reader, viewer, downloader and weather router. Remote access to weather data via satellite. Advanced weather routing capabilities, for sailors, is available. Weather forecast data, packaged as GRIB files, can be downloaded directly from the LuckGrib server cluster. Downloads are available via: a direct high speed internet connection, or through the Iridium GO! as well as through the RedPort Optimizer. For sailors, LuckGrib offers a best-in-class, complete solution: industry leading visualization and ease of use, highly optimized weather data downloads via satellite, along with industry leading optimized weather routing and route analysis. Inshore sailors may not require satellite downloads, but will benefit from the rest of the system. LuckGrib is unique among apps that were originally designed for sailors, in that the weather analysis tools are powerful enough to attract attention from meteorologitsts. For sailors, meteorologists, and all weather enthusiasts, LuckGrib offers access to a wide range of high resolutions models, a number of global models, weather data at the surface, 850mb, 500mb and 250mb levels, parameters ranging from simple things such as wind, pressure and temperature, to more advanced quantities such as simulated radar, standard deviations, precipitable water, lightning, vertical vorticity, helicity and more. LuckGrib is a thoroughly modern and advanced GRIB viewer. LuckGrib provides access to many weather and ocean models, including global models such as GFS and ECMWF along with many high resolution models, which vary according to the region you are interested in. In the USA, there is the HRRR, NAM, NBM and many others. In Europe there is Icon-EU, Arpège, Arome, the Danish DINI and others. There are several ocean current models, such as the global RTOFS and Mercator Ocean, along with regional higher resolution models such as OFS, NCOM, CMEMS and others. The LuckGrib weather routing system is an industry leading, high quality, robust, high performance and comprehensive system. The LuckGrib isochronal Weather Routing solver has many unique features, such as being able to respect constraints (points that must be left to port or starboard,) deal with routes which require you to heave-to, outstanding visualization and interactivity features, and much more. LuckGrib comes with a 14 day free trial, or free access to reduced resolution downloads (LuckGrib Lite) for users who do not require access to the most accurate data. If you are interested in studying weather and gaining access to detailed weather forecasts, download the app and give it a try. Downloading data via satellite requires the Offshore Data in-app purchase. Access to the isochronal weather routing system requires an in-app purchase. Note that LuckGrib does not use a subscription pricing model - after the free trial, when you decide to purchase the app, there will be a one time charge, not an ongoing subscription. For more details, please visit the support website. * for details on the offshore data system: https://offshore.luckgrib.com * for details on weather routing: https://routing.luckgrib.com * for details on weather models: https://luckgrib.com/models * the privacy policy: https://luckgrib.com/privacy * terms of use: https://luckgrib.com/terms-of-use * end user license agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

NOAA Forecast

Visualize detailed weather forecasts from NOAA's Global Forecast System. Explore a scrollable and zoomable grid of forecast maps, with options for different forecast types and global regions.

Highlights
  • NOAA GFS weather map display
  • Scrollable and zoomable grid interface
  • Multiple forecast types (21 options)
  • Forecasts displayed in 12-hour intervals
  • Global region selection
  • Raw GFS model data visualization
Features
Read full description

The NOAA Forecast app collects and displays weather maps produced by NOAA's Global Forecast System (GFS). The maps are displayed in a scrollable and zoomable grid. The vertical axis of the grid is forecast time. Four different forecasts are displayed at 12 hour time intervals. The horizontal axis of the grid is different types of forecasts - five different types of maps can be selected from among 21 possible map types. The maps are available for thirteen different regions of the globe. These maps are the raw maps produced by the GFS computer model. The maps and the data contained in the maps are processed and interpreted by other weather services to produce the maps seen in the newspaper and on TV.

Screenshots

LuckGrib4 screens
NOAA Forecast1 screens

Verdict

The call

The clearest difference is rating: LuckGrib at 4.9 against NOAA Forecast's 3.7. LuckGrib also leads on update cadence (every 2 months vs every 30 months) and ratings volume (343 vs 3). NOAA Forecast's advantage is in-app purchases (none vs 6) and iOS requirement (16.2 vs 18.4). On price, 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

Both are free to download. LuckGrib sells 6 one-off in-app purchases. NOAA Forecast asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LuckGrib holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: LuckGrib has 343 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

LuckGrib ships an update every 2 months, NOAA Forecast every 30 months. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

Scorecard7 real differences · 4 level
LuckGrib versus NOAA Forecast: the parameters behind the verdict, then further details
ParameterLuckGribNOAA Forecast
PriceFreeFree
Rating4.9 (343 ratings) — better3.7 (3 ratings)
Positive reviews92.7% of reviews—
Number of ratings343 — better3
Update frequencyEvery 2 months — betterEvery 30 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#128 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.416.2 — better
Further details — not scored
Size173 MB3 MB
Age rating4+4+
DeveloperCraig McPheetersGeoffrey Domm

Customer experience

LuckGrib

All ratings338 ratings
Positive96.7%
Neutral2.1%
Negative1.2%
Written reviews124 reviews
Positive92.7%
Neutral2.4%
Negative4.8%

NOAA Forecast

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

LuckGrib

Reported bugs

2 issues
  • Reported issues with 'no wind data for start time'
  • Occasional app crashes or freezes

Requested features

3 requests
  • Integration with boat instruments and data logging
  • More advanced routing options and customization
  • Improved support for regional weather models

NOAA Forecast

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

LuckGrib

One-time6
  • 14-day TrialFree
  • 14 day trial of Offshore DataFree
  • 14 day Weather Routing trialFree
Show 3 more
  • LuckGrib weather data access$29.99
  • Premium Offshore Data access$59.99
  • Weather Routing access$59.99
None

NOAA Forecast

No in-app purchases

Questions

Is LuckGrib free?
LuckGrib is free to download, with in-app purchases available.
Is NOAA Forecast free?
NOAA Forecast is free to download, with no in-app purchases.
Which has better reviews, LuckGrib or NOAA Forecast?
LuckGrib is rated higher. LuckGrib averages 4.9 out of 5 from 343 ratings, while NOAA Forecast averages 3.7 from 3 ratings.
Do LuckGrib or NOAA Forecast have ads?
Neither LuckGrib nor NOAA Forecast shows ads.
Which is updated more often, LuckGrib or NOAA Forecast?
LuckGrib ships an update every 2 months, and NOAA Forecast every 30 months. Most recently, LuckGrib was updated on October 21, 2026 and NOAA Forecast on October 19, 2026.

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