moodSailor

Your waypoints. On the horizon. Weather, currents and tides on every GPS point. Interactive tide tool, hourly popover. 24 EU 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

• COG, SOG, max and average speed
• Distance travelled, current GPS position, magnetic heading
• Compass dial: fixed or rotating mode (long-press to switch)
• Reorderable metric cards: keep what matters on top
• TVMDC calculator and IALA region card

MAP

• OpenStreetMap base layer with OpenSeaMap nautical chart overlay
• Offline tile caching: pick an area and zoom range, download once, use anywhere
• Download tiles, weather, marine data and nautical marks together; cancel or run in background
• Three rotation modes: north up, COG-aligned, compass-aligned
• Follow mode with position marker and heading line

WEATHER, CURRENTS AND TIDES

• Wind, ocean currents, waves and swell from Open-Meteo
• Wave and swell height, direction and period, with colour scale
• Choose which weather fields appear in the forecast sheet
• Animated particles or normalised arrows (NOAA wind barbs)
• Smooth heatmap with colour scale
• Time slider through the forecast; hourly popover with mini graphs
• Tide curve integrated in the sea-level row
• Weather and marine data cached separately; purge unused data anytime
• 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, persistent notification
• Live trace coloured by speed (blue to red, threshold configurable)
• Resilient to GPS dropouts; on-screen banner alerts you
• Native iOS location manager for reliable background recording
• Editor: name, duration, distance, max/avg speed, mini-map, altitude graph, weather and currents panels, tide curve
• Six denoising rules
• Import via "Open With" from Files, Mail, Nextcloud
• Export to GPX, GeoJSON, CSV or KML

POINTS OF INTEREST

• Create, edit and delete POIs with custom colours
• Nautical marks: buoy, lighthouse, beacon, cardinal
• POIs on the map with type-specific icons
• OpenSeaMap nautical marks: pick an area, download all marks as POIs, search by signal code

AR POI FINDER

• Live camera with augmented-reality POI markers
• Compass ribbon with cardinal labels and 5-degree ticks
• Logarithmic distance scaling; configurable distance and marker size
• Immersive full-screen mode; user-reorderable layer order via drag-and-drop
• OpenSeaMap nautical marks and saved POIs visible in AR view
• Camera detects the real horizon line; marks and vessels lock to it even when heeling
• Night light ID by flash pattern: matches rhythm against charted lights (e.g. Fl(2) R 10s)

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; AIS-confirmed lock to the boat outline; closer hide farther
• Status icons on vessel symbol and badge
• Predicted AR positions from last course/speed; stale fixes dashed; off-screen chevrons; opacity slider

KNOWLEDGE

• Built-in reference: glossary, beacons, ship lights, day marks, wind and sea, magnetism, currents, tides
• Search, sources, illustrations
• Interactive tide tool: pick a point on the map
• Morse code & ICS signal flags: text->code/flag translator, speaker or torch playback; Receive: point camera at blinking light, decode live

SETTINGS

• 24 official EU languages
• Units: distance, speed, altitude, temperature, coordinates
• Themes: light, system, dark
• Weather model selector (Auto, AROME-HD, ICON-EU, IFS, GFS)
• Offline regions list with size and delete

PRIVACY

• No account, no ads, no tracking
• Your data stays on your device
• Tap an unidentified vessel marker to label what kind of craft it is
• Train the fleet: opt-in sightings sharpen recognition, free; storage shown, erase anytime