Comparison

LuckGrib vs PredictCurrent

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
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

PredictCurrent

Navigate coastal waters with detailed tidal and ocean current maps. Access 10-day forecasts for currents, wind, waves, and sea temperatures. Essential for safe marine planning and exploration.

Highlights
  • Ultra-high-resolution 100m tidal current maps
  • 400m and 4km global coastline coverage
  • 10-day animated forecasts for currents, wind, and waves
  • Hourly tide chart data
  • Wind-against-current interaction analysis
  • Sea temperature tracking
Features
Currently charting
Read full description

Navigate coastal adventures with precision using real-time tidal current data from PredictWind. PredictCurrent delivers ultra-high-resolution 100m tidal current maps, plus 400m and 4km maps covering 90% of global coastlines. It also includes full ocean current coverage, empowering fishermen, sailors, and coastal explorers with essential tools for current tracking, tide planning, and marine navigation. Developed by PredictWind’s expert oceanographers, trusted globally for industry-leading forecasting, PredictCurrent supports confident and safe coastal navigation for boating, fishing, sailing, and kayaking. Why PredictCurrent - Unrivalled Precision: Ultra-high-resolution 100m tidal current maps provide unmatched detail for coastal tide planning, ideal for fishing, sailing, or paddle sports. Also includes 400m and 4km resolution maps. - Trusted Expertise: Built by PredictWind, pioneers in marine and ocean current forecasting, delivering professional-grade data. - Comprehensive Tracking: Monitor tidal currents, ocean currents, winds, waves, and sea temperatures with animated maps and hourly tide chart data for 10 days. - Coastal Navigation: Join fishermen, sailors, kayakers, and coastal explorers worldwide who rely on PredictWind’s marine weather and current data for informed navigation. Key Features - Ultra-High-Resolution 100m Tidal Current Maps: Visualise intricate nearshore water current movements with clarity, ideal for coastal navigation, route planning, and safety. - High-Resolution 400m & 4km Maps: Access tide and ocean current coverage for 90% of global coastlines, seamlessly integrated with live ocean current data. - Advanced Dashboard: Analyse wind-against-current interactions, wave heights, tide cycles, and directions using accurate ECMWF wind forecasts. - Animated 10-Day Forecasts: View dynamic tidal currents, ocean currents, wind, waves, and sea temperature forecasts on interactive marine maps. - Detailed Data Tables: Access hourly data on current speed and direction, plus alerts for wind-against-current situations. Tailored for fisherman, sailors, kayakers, and coastal adventurers, PredictCurrent offers essential tools for safe marine planning—backed by PredictWind’s proven ocean data and current tracking accuracy. Start with a 14-day free trial. Access ultra-high-resolution tidal current data, tide charts, ocean current forecasts, wind, waves, and sea temperature tools for your next coastal journey. Terms & Conditions: https://www.predictcurrent.com/terms-and-conditions Privacy Policy: https://www.predictcurrent.com/privacy-policy

Screenshots

LuckGrib4 screens
PredictCurrent4 screens

Verdict

The call

The clearest difference is review sentiment: LuckGrib at 93% against PredictCurrent's 57%. LuckGrib also leads on rating (4.9 vs 4.5). PredictCurrent's advantage is chart position (#64 vs unranked) and update cadence (monthly vs every 2 months). On price, ratings volume, 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. LuckGrib sells 6 one-off in-app purchases and PredictCurrent sells 5 in-app purchases, starting at $15.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LuckGrib holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 338 and 255 respectively. Written reviews point the same way: 93% of LuckGrib's written reviews are positive against 57% of PredictCurrent's.

UpkeepUpdate frequency

LuckGrib ships an update every 2 months, PredictCurrent monthly. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 6 level
LuckGrib versus PredictCurrent: the parameters behind the verdict, then further details
ParameterLuckGribPredictCurrent
PriceFreeFree
Rating4.9 (338 ratings) — better4.5 (255 ratings)
Positive reviews92.7% of reviews — better56.6% of reviews
Number of ratings338 — better255
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#64 — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.416.0 — better
Further details — not scored
Size173 MB50 MB
Age rating4+4+
DeveloperCraig McPheetersPredictWind Limited

Customer experience

LuckGrib

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

PredictCurrent

All ratings255 ratings
Positive85.9%
Neutral2.7%
Negative11.4%
Written reviews76 reviews
Positive56.6%
Neutral0.0%
Negative43.4%

User reviews

LuckGrib

From 338 App Store ratings

What we love

  • 🚀 Excellent weather forecasting and routing
  • 👍 Intuitive and user-friendly interface
  • 💡 Wide range of weather models and data sources
  • 🚢 Tailored for sailors and offshore navigation
  • 💰 One-time purchase, no subscription fees

Room to improve

  • 🐛 Occasional issues with GRIB file downloads
  • ⚠️ Steep learning curve for some features
  • 🔍 Lack of support for some boat types (e.g., catamarans)

PredictCurrent

From 255 App Store ratings

What we love

  • 📊 Detailed hour-by-hour current visualizations
  • 🎯 Accurate tidal and current predictions
  • 👍 Intuitive and user-friendly interface
  • 🌊 Comprehensive water condition data (wind, tide, waves, temperature)
  • 💼 Valuable competitive advantage for water sports professionals

Room to improve

  • 💰 Expensive subscription pricing ($24-30 quarterly)
  • 🚫 Mandatory account creation required
  • 📍 Limited geographic coverage and location availability
  • ⏰ Forecast data limited to short timeframes (until 11am-noon next day)
  • 🔐 Privacy concerns regarding personal data collection

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

PredictCurrent

Reported bugs

8 issues
  • Unable to add location error messages despite valid coordinates
  • Location setup fails to respond or complete
  • Password not saved correctly in database, preventing login
  • Account creation fails with character handling errors
  • App crashes when setting locations
Show 3 more
  • Free trial access inconsistent across devices
  • iPad version blocks access to charts despite iPhone trial access
  • Data unavailable errors at valid deep water locations

Requested features

9 requests
  • Extended forecast data for full 24-hour next day coverage
  • Smaller time increment stepping (sub-hourly) for racing
  • Exact tide turn time information beyond hourly data
  • Legend/symbol guide for app indicators
  • Improved coastal and estuarine modeling
Show 4 more
  • Better 100m resolution coverage beyond UK Solent region
  • Cross-platform synchronization between iPhone and iPad
  • Offline access to saved locations
  • Multi-language support (German, French, etc.)

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
5 purchases

PredictCurrent

Subscriptions5
  • PredictCurrent Pro 1-Month14 Days trial$15.001 Month
  • PredictCurrent Pro 3-Monthly14 Days trial$29.003 Months
  • PredictCurrent Pro 3-Monthly3 Days trial$29.003 Months
Show 2 more
  • PredictCurrent Pro 3-Monthly7 Days trial$29.003 Months
  • PredictCurrent Pro Annual14 Days trial$99.001 Year

Questions

Is LuckGrib free?
LuckGrib is free to download, with in-app purchases available.
Is PredictCurrent free?
PredictCurrent is free to download, with in-app purchases available.
Which has better reviews, LuckGrib or PredictCurrent?
LuckGrib is rated higher. LuckGrib averages 4.9 out of 5 from 338 ratings, while PredictCurrent averages 4.5 from 255 ratings.
Do LuckGrib or PredictCurrent have ads?
Neither LuckGrib nor PredictCurrent shows ads.
Which is updated more often, LuckGrib or PredictCurrent?
LuckGrib ships an update every 2 months, and PredictCurrent monthly. Most recently, LuckGrib was updated on October 13, 2026 and PredictCurrent on October 12, 2026.

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