OpenSeaMap vs BlueHelm Boating

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.

Navigation, Anchor-drift alarm. Live float plans. Marine weather. And your boat's own guide — with you at the helm, even offline. BlueHelm is built around YOUR boat: its systems, procedures, and checklists become a guide you can actually use underway, with the safety tools running alongside. YOUR BOAT (AI) Ask questions and get answers drawn from your boat's guide plus current conditions. "Where's the A/C seacock?" "What do I shut off on the inverter?" Boating questions only — and it never replaces your own judgment or official sources. ANCHOR WATCH Drop anchor, set your rode, and BlueHelm watches your swing. If your boat drifts past your ring, the alarm sounds — even with the screen off. Adaptive monitoring is designed to be easy on your battery overnight. TRIPS & FLOAT PLANS Plan a trip with a suggested water route, or just tap Track Now and go. Share a live float plan so the people who worry can watch your track. Every trip is saved with distance and time. SMART WATER ROUTING Plan a trip and BlueHelm suggests a route over real water — out the harbor channel, around the headland, never a straight line across land. In US waters, routing is informed by NOAA chart data. A planning suggestion to refine, not navigation — always verify against official charts. FIND NEAREST The closest marinas, fuel docks, launch ramps, harbors, anchorages, and bays — sorted by distance from your position, with over 17,000 US coastal places built in. Works with zero signal, exactly when you need it. Tap any place to plan a route there, or just ask Your Boat. TRAVEL WINDOW A same-day read on wind and swell, scored hour by hour, so you can pick the calm window instead of guessing. Transparent about its sources and thresholds — a planning aid, not a go/no-go verdict. MARINE CONDITIONS Wind, tide, waves, and water temperature with hourly and 7-day forecasts, tide charts, and NOAA coastal alerts in US waters. VESSEL GUIDE Your boat's procedures — getting on, heading out, heading back, closing up — as living checklists that work fully offline. Multi-boat ready: every vessel keeps its own guide, log, and documents. MOB & EMERGENCY One-tap man-overboard marking and an emergency console with your position ready to read over the radio. MEMBERSHIP — STRAIGHT PRICES 14-day free trial, no card required. Crew: $9.99/month or $99/year. Captain (higher AI allowance): $17.99/month or $199/year. Add a boat: $49/year. No ads. We never sell your data, and your guide content is never used to train AI. BlueHelm is an aid to seamanship — not a substitute for it. Always maintain a proper lookout, monitor official forecasts and notices, and carry required safety equipment. AI answers can be wrong; verify anything safety-critical against your boat's documentation. Questions? services@getbluehelm.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getbluehelm.com/legal