moodSailor

Your waypoints. On the horizon. Weather, currents and tides on every GPS point. Interactive tide tool, hourly popover. 25 languages, free.

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
• Regatta mode: course marks, start sequence with flags and countdown, over-early alert
• Signal K and NMEA instruments on the cockpit: heading, depth, wind
• 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
• Offline tile caching: pick an area, layers and zoom
• One-tap Map/Satellite view switch
• Adjustable overlay opacity
• Download tiles, weather, marine data and marks
• 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
• Route deviation watch: alarm when your heading leaves a tolerance sector around the desired course, even with the screen off
• Anchor watch: swing circle or polygon around the drop point, alarm and notification if the boat drags, all night in the background

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
• Tide curve integrated in the sea-level row
• Every recorded GPS point carries its weather, currents, waves 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
• 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
• Lit marks flash their real light rhythm on the map and in the camera view
• OpenSeaMap nautical marks: download as POIs, search by signal code
• Export points, seamarks or your position as GPX, KML, CSV or GeoJSON

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
• 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
• 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

SETTINGS

• 25 languages
• Units: distance, speed, altitude, temperature, coordinates
• Themes: light, system, dark
• Weather model selector
• 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