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
- Course over ground (COG), speed over ground (SOG), max and average speed
- Distance travelled, current GPS position, magnetic heading
- Configurable GPS smoothing (moving average filter)
- 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
- Three rotation modes: north up, COG-aligned, compass-aligned
- Follow mode with position marker and COG heading line

WEATHER, CURRENTS AND TIDES
- Wind, ocean currents, waves and swell from Open-Meteo
- Animated particles or normalised arrows (NOAA wind barbs)
- Smooth Windy-style heatmap with colour scale and legend
- 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 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
- Android battery-optimisation guard; iOS native location manager
- Editor: name, duration, distance, max/avg speed, mini-map, altitude graph, weather and currents panels, tide curve
- Six denoising rules (accuracy, stop clipping, acceleration cap, altitude smoothing)
- 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

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 (bearing line tracks speed) and circles when stopped (anchored / moored / aground)
- 3D side-view AR vessels at real angular size; closer vessels naturally hide farther ones
- Status icons (anchor, sailing, aground, paused) on both vessel symbol and badge
- Predicted positions in AR from last reported course and speed; stale fixes flagged with dashed outline and age label; off-screen vessel chevrons; separate AR opacity slider

KNOWLEDGE
- Built-in reference: glossary, beacons, ship lights, day marks, wind and sea, magnetism, currents, tides
- Search, sources, illustrations (IALA charts, NOAA declination)
- Interactive tide tool: pick a point on the map, see graph and table
- Trace denoising explained
- Morse code & ICS signal flags: text->code/flag translator, speaker or torch playback

SETTINGS
- 24 official EU languages
- Units: distance (NM, km, miles+yards), speed (knots, km/h, mph), altitude (m, ft), temperature (°C, °F), coordinates (DD, DMM, DMS)
- Themes: light, system, dark
- Adjustable text scale
- 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