Comparison

Weather4D Routing vs PredictWind Offshore Weather

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

Head to head
About

Weather4D Routing

This app provides advanced weather forecasting and route optimization for sailing. It uses GRIB data, boat polar characteristics, and various meteorological models to plan efficient and safe journeys.

Highlights
  • GRIB weather and ocean data analysis
  • Customizable GRIB file downloads
  • Optimized sailing and engine routes
  • Wind and wave constraint consideration
  • Multiple route comparison
  • Real-time routing updates
Features
Currently charting
Read full description

Weather4D Routing is an outstanding meteorological and routing application based on weather and ocean data in GRIB format as well as the speed characteristics of the sailing boat (polar) and its minimum speed when operated with its engine. It benefits from an interface derived from the “Routing & Navigation” version. Weather GFS model is provided by default. In addition, over 35 weather and oceanographic models are available with a yearly subscription (in-app purchase). Queries and downloads are fully customizable. The application makes it possible to create your own geographical zones and to select the characteristics of the GRIB files to download: choice of data, resolution, periodicity, file size, etc. GRIB files can be downloaded wherever you are from our servers through a regular or satellite internet connection. Weather4D Routing displays the combined data as layered layers. All the data of a selected model is displayed by an animation in continuous time scrolling or in manual scrolling on the map. The weather forecast is displayed in one or two windows (iPad only), offering several display combinations of the same area: navigation and weather, weather and waves or currents, comparison of different models. The two windows can be disassociated for displaying the same area at different scales. Routing Weather4D Routing makes it possible to optimize sailing or engine, or mixed sail-engine routes. From a theoretical route, a routing algorithm will take into account wind force and wave height constraints. When sailing, the boat polar combined with wind and current forecasts will be used to optimize performance, comfort and safety. Several routes can be displayed to compare the outcome of different options: different forecast patterns, departure dates and times, selected constraint values. The routing can be restarted at any moment during navigation from the actual position of the boat. Default Models and Charts ———————————— GFS global forecast model at 0.25 °, 0.5 °, 1 ° and 2 ° resolutions. BING global chart OSM (Opens Street Map) global chart Optional Models (in-app purchase): ——————————————————— Weather -------- NAM USA GEM Global COAMPS Europe, West Atlantic, Central America, East Pacific ICON-EU Europe ARPEGE Global, Europe AROME France, Antilles, Guyane, Polynésie, Calédonie, Indien AROME HD France WRF France, Europe, Greece, NW Africa, Azores, Lesser Antilles, Greater Antilles Waves ------- MFWAM Global, Europe, France FNMOC WW3 Global, Europe Currents --------- MyOcean Global, IBI, NWS, Baltic, Med NCOM AMSEAS, USEAST, ALASKA, SOCAL, HAWAII

About

PredictWind Offshore Weather

Access detailed offshore weather forecasts and marine tools for coastal and offshore passages. Download GRIB files, view weather routes, and utilize advanced marine data for safe and efficient navigation.

Highlights
  • Download GRIB files
  • View weather routes
  • Access forecast models
  • Marine tools
  • Weather routing
  • GPS tracking
  • AIS data
Features
Read full description

The Offshore App allows you to seamlessly download multiple GRIB files for your coastal and offshore passages. Quickly download and view GRIB files, weather routes, GMDSS maps and text forecasts, AIS data and satellite imagery. Access all the world’s top ranking forecast models for reliable and accurate weather data, including ECMWF, SPIRE, UKMO, GFS and more. Our very own PWG & PWE models offer incredible accuracy and a record-breaking 1km resolution. In addition to forecasts, the Offshore App also provides a suite of powerful marine tools to save you time and keep you safe at sea. Weather Routing and Departure Planning is calculated in the PredictWind cloud at the highest resolution. The finished route is then sent back to your boat in an incredibly small file size which is ideal for low bandwidth satellite and SSB connections. The Offshore App works with Wi-Fi, mobile networks, and most satellite connections using an Iridium GO!, Globalstar or Optimizer device. ADDITIONAL FEATURES GRIB file viewer: High resolution forecasts maps with animated streamlines, wind barbs or arrows. Tables: The ultimate dashboard for detailed analysis. Graphs: Compare multiple parameters at the same time. GMDSS Forecasts: View either in the traditional text format or on a map. Destination Spot Forecast: Know exactly what the weather is doing at your destination. Live Observations: Know what’s happening right now out on the water. Ocean Data: See what’s happening under the waves with ocean and tidal currents, and sea temperature. GPS Tracking: Get a free customised GPS tracking page for your blog or website. AIS Data: View over 280,000 vessels worldwide on the AIS network.

Screenshots

Weather4D Routing4 screens
PredictWind Offshore Weather4 screens

Verdict

The call

The clearest difference is price: PredictWind Offshore Weather at Free against Weather4D Routing's $39.99. PredictWind Offshore Weather also leads on in-app purchases (none vs 2) and update cadence (monthly vs every 3 months). Weather4D Routing's advantage is chart position (#178 vs unranked) and review sentiment (66% vs 54%). On 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 Offshore Weather is free to download; Weather4D Routing costs $39.99 up front. Weather4D Routing sells 2 one-off in-app purchases. PredictWind Offshore Weather asks for nothing beyond the download.

UpkeepUpdate frequency

Weather4D Routing ships an update every 3 months, PredictWind Offshore Weather monthly. Both last shipped on November 6, 2026.

Scorecard7 real differences · 4 level
Weather4D Routing versus PredictWind Offshore Weather: the parameters behind the verdict, then further details
ParameterWeather4D RoutingPredictWind Offshore Weather
Price$39.99Free — better
Rating—3.5 (41 ratings) — better
Positive reviews66.0% of reviews — better54.3% of reviews
Number of ratings—41 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#178 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.4
Further details — not scored
Size488 MB527 MB
Age rating4+4+
DeveloperAPP4NAVPredictWind Limited

Customer experience

Weather4D Routing

Written reviews50 reviews
Positive66.0%
Neutral2.0%
Negative32.0%

PredictWind Offshore Weather

All ratings41 ratings
Positive58.5%
Neutral7.3%
Negative34.1%
Written reviews35 reviews
Positive54.3%
Neutral5.7%
Negative40.0%

In-app purchases

2 purchases

Weather4D Routing

One-time2
  • 3 Months HD Forecast Subscription$17.99
  • 1 Year HD Forecast Subscription$39.99
None

PredictWind Offshore Weather

No in-app purchases

Questions

Is Weather4D Routing free?
Weather4D Routing costs $39.99, and also offers in-app purchases.
Is PredictWind Offshore Weather free?
PredictWind Offshore Weather is free to download, with no in-app purchases.
Do Weather4D Routing or PredictWind Offshore Weather have ads?
Neither Weather4D Routing nor PredictWind Offshore Weather shows ads.
Which is updated more often, Weather4D Routing or PredictWind Offshore Weather?
Weather4D Routing ships an update every 3 months, and PredictWind Offshore Weather monthly. Most recently, Weather4D Routing was updated on November 6, 2026 and PredictWind Offshore Weather on November 6, 2026.

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