Neptune's Route

Neptune's Route

Neptune's Route is a professional navigation application for planning ocean passages and long-distance voyages.

The app calculates Great Circle routes using both classical spherical navigation and highly accurate WGS84 geodesic calculations based on Charles Karney's algorithms (GeographicLib). Users can compare both calculation methods directly.

For practical voyage planning, Neptune's Route supports Composite Sailing with a user-defined Maximum Latitude, allowing Great Circle routes to be limited in high latitudes while maintaining efficient ocean passages.

Features

• Great Circle calculations (Spherical Earth)

• Great Circle calculations (WGS84 / Karney)

• Composite Sailing with user-defined Maximum Latitude

• Great Circle Position (daily run / Etmal)

• Meridian Intersection Position

• Great Circle Vertex calculation

• Initial and Final Course

• Rhumb Line course and distance between all generated waypoints

• GPX export for navigation software

• RTZ route export for modern ECDIS systems

• PDF voyage reports

• Save and reload calculated routes

• Works completely offline

• No subscriptions

• No advertisements

The application is designed for sailors, yacht skippers, students of navigation, and professional mariners who require reliable Great Circle voyage planning.

All calculations are performed directly on your device. No internet connection is required for route calculations, and no navigation data is transmitted to external servers.

Neptune's Route combines classical navigation methods with modern geodesic algorithms, providing accurate and practical ocean route planning in a straightforward, easy-to-use interface.

Features

- Great Circle route calculation
- WGS84 (Karney) calculations
- Spherical calculations
- Composite Sailing
- Great Circle waypoints
- Meridian Intersection waypoints
- Initial and final courses
- Great Circle and Rhumb Line distances
- Interactive map
- GPX export
- PDF reports
- Local route storage
- No advertisements
- No subscription

Designed for professional mariners, yacht skippers, sailing enthusiasts and maritime students.