Luna Marine Charts

Fast, modern marine navigation with offline NOAA charts, route planning, tides, and live AIS. Built for sailors and boaters. Actively updated with new features!

Luna Marine Charts is a fast, modern marine navigation app built for sailors, cruisers, and recreational boaters.

Plan routes in seconds, navigate with official NOAA and USACE vector charts, and access tides and currents 100% offline. Whether you're preparing at home, planning a coastal passage, or navigating on the water, Luna helps you stay informed and focused.

▶ Official Charts & Offline Navigation

• Download NOAA Coastal and USACE Inland River charts for offline use
• Full offline access to chart data, tide stations, and current predictions
• High-contrast Day, Dusk, and Night display modes to protect night vision
• Customizable units for depth, distance, and speed

▶ Fast Route Planning

• Tap to place, drag, or insert waypoints to edit routes instantly
• Real-time distance, bearing, and ETA calculations
• Smart Auto-Routing with Great Circle navigation support
• Seamless GPX route import and export

▶ Integrated Tides & Currents

• Tap any tide or current station directly on the map for instant forecasts
• View water level predictions and flow speed/direction in clean graph views
• Access full station metadata and daily prediction tables off the grid

▶ Live Instrument Dashboard (Pro)

• Turn your phone, tablet, or laptop into a real-time marine display
• Monitor live Speed Over Ground (SOG), Course Over Ground (COG), and GPS signal strength
• Track distance and time remaining to your active waypoint

▶ AIS Traffic & NMEA Integration (Pro)

• Connect to your boat’s NMEA network via Wi-Fi or serial cable
• Overlay live AIS targets directly on your chart for enhanced collision awareness
• Stream high-accuracy position data from your vessel’s external GPS receiver

▶ GPS Track Recording (Pro)

• Record your tracks with flexible pause, resume, and multi-segment tracking
• Export tracks as GPX files to archive your logs or share with other boaters