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PredictWind vs LuckGrib: catalog facts
PredictWind	LuckGrib

Best for: Sailors planning passages around wind and weather	Best for: Sailors planning passages with GRIB weather forecasts
Free + paid options Some forecasts are free; routing and advanced features need a paid plan.	Paid Purchased through the Apple App Store.
Web	macOS, iOS
High-resolution wind forecasts Weather routing and departure planning together Aimed specifically at sailing and ocean racing	Direct downloads of GFS, CMC and WW3 models Weather routing for sailing passages Designed for use while offshore Fast animated forecast display
Advanced features are paid Proprietary hosted service	Apple platforms only Paid app
Web application, Hosted service	Downloadable app
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for PredictWind predictwind.com Catalog checked September 24, 2026	Official website Full listing and sources Sources for LuckGrib luckgrib.com apps.apple.com/us/app/luckgrib/id1318450117 Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.