OpenSeaMap vs moodSailor

OpenSeaMap is a worldwide Opensource-project for creating a free nautical chart. Founded in 2009 the project gained a lot of attention lately adding more and more nautical information for free. Not even lights and other nautical infos are provided, but also more and more info layers like weather data, information about harbours and so on. As an add on to the OpenStreetMap this provides all missing info for nautical activities. OpenSeaMap is part of OpenStreetMap and uses the same database. FEATURES: - Free worldwide sea chart (incl. HD chart graphics) - Search for geolocations worldwide - Chartplotting with continuous tracking - Waypoints can easily be created, edited, deleted & exported - Mark locations in the chart - Zoom chart optically to fit your preferred reading size - Enter coordinates directly to be displayed in the chart - Offline caching of up to 1 million map tiles - Cleanup of chart cache data at any time To ensure future development and support of the OpenSeaMap app we encourage you to buy the In-App-Product "PRO". This will help keeping new updates and features coming. DISCLAIMER: OpenSeaMap is part of the OpenStreetMap and uses the same database. As an experienced navigator you should NEVER rely your descisions on one source of information alone. Please keep in mind that the OpenSeaMap can not replace official sea charts on bord of your boat. Please use the OpenSeaMap app only in conjunction with official sea charts and conforming to national and international regulations. Please recognize that no depth information is provided by this product. IMPORTANT: The continued use of the GPS can significantly decrease the battery level.

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: 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 the course, even with the screen off - Anchor watch: circle or polygon around the drop point, alarm if the boat drags, all night - Navigational warnings: French AVURNAV, Canada, Croatia and relayed authorities; alert when one is nearby WEATHER, CURRENTS AND TIDES - Wind, ocean currents, waves and swell from Open-Meteo - Wave and swell height, direction and period - Choose the forecast sheet's weather fields - 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