Comparison

LuckGrib vs windr

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

windr

Features
Read full description

Windr - Just Weather with No Guessing. Most weather apps are built for people wondering if they need an umbrella today. Windr is built for people going out on the water. You don’t have time to dig through pages cluttered ads, second guess forecasts, or piece things together. Windr does it for you. You need to know what the wind conditions are right now, and what the weather is about to do. So you don't get stuck in a storm or sailing with no wind. That’s exactly what Windr gives you the moment you open it. Know Before You Go Open the app and instantly see: • What the wind is doing now • Where it’s coming from • How it’s going to change and when No digging. No ads. Just pure clarity and awesome accurate weather reports See your day on the water ahead of time, and during your adventure. Plan your day in seconds: • Watch how the wind builds or fades through the day • Spot shifts before they happen • Get a clean, simple view of what’s ahead It’s everything you actually care about and nothing you don’t. Built for Real Sailing, not for ad revenue. Check multiple spots instantly: • Your home harbor • The race course • Your next destination Just tap and go. Fast. Clean. Reliable. • No ads • No subscriptions • No accounts • No clutter Just open it, get what you need, and go. Windr helps you make better calls, faster - so you can focus on what you love boating and sailing

Screenshots

LuckGrib4 screens
windr3 screens

Verdict

The call

The clearest difference is in-app purchases: windr at none against LuckGrib's 6. LuckGrib's advantage is chart position (#122 vs unranked) and iOS requirement (18.4 vs 26.2). On price, update cadence, 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. windr asks for nothing beyond the download.

UpkeepUpdate frequency

LuckGrib ships an update every 2 months, windr every 5 weeks. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 8 level
LuckGrib versus windr: the parameters behind the verdict, then further details
ParameterLuckGribwindr
PriceFreeFree
Rating4.9 (338 ratings) — better—
Positive reviews92.7% of reviews—
Number of ratings338 — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#122 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.4 — better26.2
Further details — not scored
Size173 MB1 MB
Age rating4+4+
DeveloperCraig McPheetersAndrew Sorensen

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

windr

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

windr

No in-app purchases

Questions

Is LuckGrib free?
LuckGrib is free to download, with in-app purchases available.
Is windr free?
windr is free to download, with no in-app purchases.
Do LuckGrib or windr have ads?
Neither LuckGrib nor windr shows ads.
Which is updated more often, LuckGrib or windr?
LuckGrib ships an update every 2 months, and windr every 5 weeks. Most recently, LuckGrib was updated on October 13, 2026 and windr on October 8, 2026.

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