Sea Depth vs BlueHelm Boating

SeaDepth delivers professional-grade bathymetric charts for anglers looking to add a new level of detail and insight offshore. Built using high-resolution survey data and advanced shaded-relief techniques, SeaDepth reveals underwater structure, contours, and terrain that traditional charts often fail to show. The result is a clearer, more intuitive view of the seafloor - helping anglers and captains better understand offshore environments before and during time on the water. In addition to detailed depth visualization, SeaDepth offers optional data overlays, intelligent contour labeling, waypoint interoperability, and analytical tools that enhance situational awareness offshore. Key Features • High-resolution shaded-relief bathymetry • Detailed, clearly labeled depth contours • Intelligent contour interval scaling by depth range • Pipeline overlay (Gulf of America) • Bottom composition overlays highlighting seafloor characteristics • GPX waypoint import and export for interoperability with other platforms • Drift Test tool to observe drift direction and speed over time • Offline chart access for use beyond cellular coverage • Smooth zooming and panning optimized for offshore use Depth Contours with Intelligent Labeling SeaDepth uses a graduated contour labeling scheme designed to provide maximum detail where it matters most, while maintaining clarity and performance in deeper  depths: • 1-foot contour intervals from 1 to 500 feet • 10-foot contour intervals from 500 to 2,500 feet • 80-foot contour intervals from 2,500 feet to abyssal depths This approach delivers high-resolution insight in shallow and mid-depth areas while avoiding visual clutter in deepwater environments. Overlay Intelligence SeaDepth allows users to enable optional overlay layers such as pipelines and bottom composition data in supported regions, including the Gulf of America. These overlays provide additional context and help users interpret bottom features and structural edges with greater confidence. All available overlay layers are included at no additional charge. Waypoint Management (GPX Support) SeaDepth supports importing and exporting waypoints using the GPX file format, making it easy to move data between SeaDepth and other compatible marine devices, charting software, or planning tools. This allows users to maintain consistent waypoint libraries across platforms. SeaDrift-Drift Test Feature The built-in Drift Test feature helps users evaluate drift behavior by tracking movement over time. This is especially useful when assessing current and wind influence to have more productive drifts. Built for Offshore Reliability Charts, overlays, and waypoint data are stored locally on the device, allowing SeaDepth to function reliably offshore where connectivity may be limited or unavailable. Performance and usability are optimized for real-world offshore conditions. Disclaimer SeaDepth is intended as a supplemental planning and visualization tool only. It is not a substitute for official nautical charts, onboard navigation systems, or prudent seamanship. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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 Free to download, and free forever for anchor watch, the map with your position, nearby places, today's conditions, float plans, SOS and your boat's guide. Premium adds the Premium chart (charted depths and hazards, water routing, tracked trips), Ask your boat and the week ahead, for up to three boats: $9.99 a month or $59.99 a year. Try each Premium feature free first: five 24-hour passes each, started with a tap, no card, nothing automatic. 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