moodSailor

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)
- Head-up course-over-ground compass; large, legible gauges on tablets
- Reorderable metric cards: keep what matters on top
- TVMDC calculator and IALA region card

MAP
- OpenStreetMap base layer with OpenSeaMap nautical chart overlay
- Offline tiles: pick area and zoom, download once, use anywhere
- Download tiles, weather, marine data and nautical marks together
- 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; banner alert
- Battery guard (Android); native location manager (iOS)
- Editor: name, duration, distance, mini-map, altitude graph, weather, currents, tide
- 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
- Tap a mark or waypoint for a detail page: position, light flash rhythm, cardinal quadrant and topmark, live bearing
- OpenSeaMap nautical marks: download 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
- Camera matches vessels to AIS targets
- 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
- Status icons (anchor, sailing, aground, paused) on vessel symbol and badge
- Predicted positions in AR from last course/speed; stale fixes with dashed outline; off-screen chevrons

KNOWLEDGE
- Built-in reference: glossary, 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; 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
- Train the fleet: opt-in sightings sharpen recognition, free; erase anytime