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

• 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
• 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 (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

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
• Roll compensation; immersive full-screen mode

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

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