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LuckGrib vs PredictWind: catalog facts
LuckGrib	PredictWind

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

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