Weather
Weather4D Routing & Navigation
Combine marine weather, route simulation and chart-based navigation.
Useful for experienced sailors comparing passage plans
GRIB selection and boat polars support scenario-based routing.
Keep in mind: Forecasts, chart currency and connected sensor quality need independent checking; carry approved backup navigation.
Inside the app
Official product images
What you can do
- Weather-model layers
- Polar-based route calculations
- Offline charts and instrument connections
Good for
- Boaters already familiar with navigation planning
Consider alternatives for
- A guaranteed autonomous safety system
Limitations & considerations
- Captured minimum: iOS 13.0.
- Forecasts, chart currency and connected sensor quality need independent checking; carry approved backup navigation.
Privacy & permissions
Location, AIS and sensor sharing can expose movements; community data sharing is a separate choice.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
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