The APP4NAV company develops, for tablets and smartphones, navigation and routing applications associated with weather predictions for boating and outdoor recreation. It uses the latest development tools to offer a high-level graphical interface to effectively present the navigation data. The time scrolling added to 3D representation, the wealth of weather forecasts models in GRIB format, timeliness of routing algorithms, the fluidity of the cartographic display, contribute to provide the user with fast understandable information to ensure the safety of its navigations.

APP4NAV offers 3 applications for iOS (iPad, iPhone and iPod Touch), and one application for Android.

Comparative table

Features Weather4D Weather4D PRO Weather4D 2.0 W4D Android
Single or double-screen display (iPad)
GRIB GFS model (Global)
GRIB GEM (Global) COAMPS (regional) (*)
GRIB Hi-Res WRF model (regional)
✓ (*) ✓ (*) (*)
GRIB NAM model (USA)
✓ (*) ✓ (*)
GRIB Hi-Res ARPEGE & AROME (Meteo-France)
✓ (*) ✓ (*) (*)
GRIB Hi-Res AROME HD (Meteo-France) (*)
Oceanic GRIB models (Waves/Currents) (*)
Requests by satphone (GFS via Saildocs)
Direct download w/Iridium GO!™ (all forecast models )
Iridium satellite passage prediction
Historical GRIB files management
Routing with Polar speed (Multiple)
Charting navigation
Create Routes and Waypoints
Import – Export Routes
Advanced track management
TCP-IP Support
Advanced NMEA interface
Autopilot control
Analog Instruments panel
AIS Support
AIS via Internet (AISHub)
Alarm management
Apple Watch Support (iPhone only)
Free multimedia User Guide
Minimum supported system iOS 7.0 iOS 7.0 iOS 9.0 Android 4.2

(*) Included in the yearly subscription