Ditch vs CHRTsail

Ditch: Boat Navigation Reimagined. Ditch empowers captains with smarter, safer routes and unparalleled confidence on the water. Try it free for two weeks! SMART PATH™ Our unique routing algorithm analyzes billions of data points, including historical AIS data, to create the safest, most efficient path for your boat. It's like having years of local knowledge distilled into every journey. SMART ETA No more guessing arrival times. Ditch factors in the slower no-wake zones, and your cruising speed, to provide more accurate ETAs, taking the guesswork out of your journey. Ditch is not designed to replace your existing navigation tools, but to enhance them. Think of it as your trusted second opinion, providing an extra layer of confidence so you can focus on enjoying your time on the water. Additional Key Features AIS DATA See where other boats have traveled. Visualize historical AIS data directly on your charts to identify popular and safe routes. CUSTOMIZABLE CHARTS Tailor your charts to your needs. Filter data based on local captains, recency, and boat length, to get a personalized view of the waterways. LIVE NAVIGATION VIEW See real-time updates on route distance, time to arrival, and SOG while underway. UP-TO-DATE DATA We prioritize the freshest most recent information. CONSTANTLY EVOLVING Our routing AI algorithm is always learning and improving. UNPARALLELED DETAIL Combining NOAA charts, USACE surveys, and historical AIS. AI POWERED Our cutting-edge technology analyzes millions of miles of real-world boating data. SIMPLE & INTUITIVE Our uncluttered interface puts the focus on your route, making navigation effortless and enjoyable. EFFORTLESS EXPLORATION Focus on the joy of boating, not just navigation. After your free trial, enjoy a full year of Ditch for only $29.99. Download Ditch today and experience the boat navigation reimagined! Terms of Use: https://ditchnavigation.com/ditch-terms-of-use/ Privacy Policy: https://ditchnavigation.com/privacy-policy/

CHRTsail is the product of real frustration with the boating chart-plotter landscape. Charts are either dumbed down, or old and pixelated — and, either way, hard to actually use. We said enough: it's time someone built modern charts and software for the mariner of today and tomorrow. That's what CHRT is all about. CHRTsail is a chart plotter engineered like a precision instrument, built from the ground up on a modern stack. Official chart data, full control over how it renders, and a platform built to work just as well offline as online. BETTER CHARTS Every chart is vector data, rendered fresh on your device — not scanned paper, not a static image — so it's crisp at any zoom, on any screen. Choose your portrayal: the official IHO S-52 ECDIS symbology, or a softer house style built for easy reading in daylight. Choose your detail level too, from a clean overview down to full harbor complexity. CHRTland adds relief, contours, roads and place names on the land side, so the shore reads as a shape, not a blank space. Charts themselves are official Electronic Navigational Charts, sourced directly from the issuing hydrographic office — today, that's NOAA, covering U.S. waters including Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, Guam, and American Samoa. More coverage is in development. OFFLINE, BY DESIGN CHRTsail is built offline-first, not offline-as-backup. Download full chart regions before you leave the dock and keep navigating with no signal at all — built for a multi-day passage, not just a harbor stroll. Hazard alerts keep working offline too, clearly labeled as reading only what's downloaded to your device — never silent, and never pretending to see everything the online check would. The barometric-pressure trend needs no network to begin with, and logs itself alongside your track either way. Running low on charge? Emergency Battery Mode stretches it by slowing how often things refresh — never by turning off anything that matters. ONE ACCOUNT, EVERYWHERE The same CHRTsail account carries across iPhone and iPad, CHRTsail for Mac, and CHRTweb in your browser (in beta) — plan a passage at the chart table, then pick it up on the water. Live position and hazard alerts live here, on the device that's actually with you underway. NATIVE, TOP TO BOTTOM Live Activity, Lock Screen, Dynamic Island, and Home Screen widgets — built in, not bolted on. Your position, speed, and next waypoint stay visible while you're underway without unlocking your phone; a Home Screen widget surfaces the tide without opening the app at all. Every setting — chart style, complexity, units, safety depth, night mode — follows you everywhere. WAYPOINTS & ROUTES Drop a waypoint with a tap, plan a multi-leg route across a whole passage, and navigate to any mark with bearing, distance, time to waypoint, and cross-track error. Share a route with your crew — sent directly to people you've connected with, never a public link. WEATHER, TIDES & CURRENTS NOAA harmonic tide and current predictions, computed right on your device — a scrubbable curve, station markers on the chart, and the next high or low wherever you're looking. Observed conditions from the buoys that are actually measuring nearby — wind, waves, pressure — with the station named and the reading's age always in view. Full National Weather Service marine zone forecasts and active warnings, read straight from the source, not trimmed to a headline. AND EVERYTHING ELSE A PASSAGE NEEDS Hazard alerts ranked against your own declared safety depth — arithmetic, not a guess, and never a verdict. A logbook that records itself, passage after passage. Anchor watch, Man Overboard, and a boat profile that knows your draft. CHRTsail provides situational awareness only. It is not SOLAS-compliant, not a certified ECDIS, and not intended for primary navigation — and it is not a substitute for official charts, publications, or prudent seamanship.