moodSailor vs NautNav

moodSailor is a nautical navigation app for sailors, boaters, kayakers and anyone who spends time on the water. It works offline, runs on your phone, and respects your privacy. NAVIGATION - Man overboard: hold-to-set MOB button on every screen, alarm, bearing and drift area - COG, SOG, max and average speed - Distance travelled, current GPS position, magnetic heading - Compass: fixed or rotating mode - Head-up course-over-ground compass - Reorderable metric cards - Custom cockpit panels: your cards, your sizes, shareable as files - Regatta mode: course marks, start sequence with flags and countdown, over-early alert, automatic rounding - Signal K and NMEA instruments on the cockpit: heading, depth, wind; boat network scan - TVMDC calculator, units converter and IALA region card MAP - OpenStreetMap base layer with OpenSeaMap nautical chart overlay - Official charts where a hydrographic office publishes one free: Norway, US, Canada, Iceland, Netherlands, Spain, Portugal - Offline tile caching: pick an area, layers and zoom range - One-tap Map/Satellite view switch - Adjustable overlay opacity - Download tiles, weather, marine data and marks together - Three rotation modes: north up, COG-aligned, compass-aligned - Follow mode with position marker and heading line - Route tool: draw, measure, save multi-leg routes; export and import WEATHER, CURRENTS AND TIDES - Wind, ocean currents, waves and swell from Open-Meteo - Wave and swell height, direction and period - Choose which weather fields appear in the forecast sheet - Animated particles or wind-barb arrows - Smooth heatmap with colour scale - Forecast time slider; hourly popover with mini graphs - Tide curve integrated in the sea-level row - Every recorded GPS point carries its weather, currents, waves, swell and tide GPS TRACES - Recording interval: 1, 2 or 5 seconds - Background mode: keeps running with screen locked - Live trace coloured by speed - Resilient to GPS dropouts - Native iOS location manager for reliable background recording - Editor: mini-map, altitude graph, weather, currents, tide - Six denoising rules - Import via "Open With" from Files, Mail - Export to GPX, GeoJSON, CSV or KML POINTS OF INTEREST - Create, edit and delete POIs with custom colours - Nautical marks: the full IALA set, incl. wreck and preferred channel - POIs on the map with type-specific icons - Mark detail pages: light rhythm, cardinal topmark, live bearing - Lit marks flash their real light rhythm on the map and in the camera view, sector arcs included - OpenSeaMap nautical marks: download as POIs, search by signal code - Export points, seamarks or your position as GPX, KML, CSV or GeoJSON; import GPX AR POI FINDER - Live camera with augmented-reality POI markers - Compass ribbon with cardinal labels - Configurable distance range and marker size - Immersive full-screen mode; drag to reorder layers - OpenSeaMap nautical marks and saved POIs visible in AR view - Camera detects the real horizon line - Night light ID: matches flash rhythm against charted lights AIS VESSEL TRACKING (optional) - Live nearby vessel positions on the map and in AR POI Finder - Course and speed indicators; collision awareness (CPA / TCPA) - Vessels rendered as kites under way and circles when stopped - AR vessels at real angular size - Status icons on vessel symbol - Predicted AR positions from last course/speed KNOWLEDGE - Built-in reference: glossary, beacons, ship lights, day marks, wind, magnetism, currents, tides - Search, sources, illustrations - Interactive tide tool: pick a point on the map - Morse & ICS signal flags: text->code/flag, speaker or torch SETTINGS - 25 languages - Units: distance, speed, altitude, temperature, coordinates - Themes: light, system, dark - Weather model selector (Auto & more) - Offline regions list with size and delete PRIVACY - No account, no ads, no tracking - Your data stays on your device - Train the fleet: opt-in sightings sharpen recognition, free

NautNav is the copilot that keeps you off the rocks. The "Waze of the sea" for sailors and powerboaters: from planning at the marina to arrival at your destination, with safety first. Here the unit of measure is the demonstrably valid route, not the pretty route. Every track runs through a safety system that rejects paths crossing land or shallow water before you cast off. GO OR NO-GO? Check wind, waves, swell, tide, visibility and temperature in real time and make the Go/No-Go call clearly. The day's conditions sit right on the home screen, next to the map. ROUTES THAT PROVE THEMSELVES Set origin and destination and get a route validated meter by meter. The Safety Kernel works with a coastline mask, bathymetry and real obstacles (dikes, breakwaters, piers) to keep your keel clear of the bottom. NAVIGATE AND RECORD WITHOUT THINKING In free navigation mode, your trip is recorded by GPS automatically and becomes a logbook. Speed, distance and time at sea, all logged. YOUR FLEET IN YOUR POCKET Register each vessel with cruising speed, top speed, tank capacity and fuel burn. Keep your boat's data at hand when it's time to plan. DIGITAL LOGBOOK Review every passage with map replay, distance covered and total time at sea. Your time aboard, organized. THE FLEET IS THE PROOF The more boats sail a region, the better the route gets. The community corroborates real paths and reports hazards, turning the experience of those who went before into intelligence for those about to go. OFFLINE MAPS Download entire regions and navigate without relying on signal. Coverage along the coast of Brazil and destinations like the Caribbean, Mediterranean, Portugal and the US East Coast. MADE BY SAILORS, FOR SAILORS Trilingual (Portuguese, English and Spanish). An interface built for precise reading under harsh sun, on your phone, at sea. PLANS • Marujo: free to start. • Capitão and Comandante: advanced features for those who take the boat seriously. Fair winds and calm seas. See you on the water.