OceanPulse vs CHRTsail

OceanPulse turns your iPhone and iPad into a full marine chartplotter. Navigate with real NOAA nautical charts, plan routes, record your voyages, and check tides, currents, and marine weather — even miles offshore with no cell signal. Whether you sail, fish, cruise, or paddle, OceanPulse puts everything you need on the water in one beautifully simple app. REAL NAUTICAL CHARTS • Detailed NOAA vector charts with buoys, beacons, lights, wrecks, landmarks, and depth soundings • Tap anything on the chart for a plain-English description of every nautical object under your finger • Depth shading plus a safety-depth layer that hatches water shallower than your chosen depth in red • Bridge clearance labels, light sectors, and depths in feet, meters, or fathoms • Light, dark, and auto themes with road or satellite land overlays OFFLINE CHARTS • Download any region — frame it on the chart and see the exact size before you commit • Downloads continue in the background and resume automatically if interrupted • Update badges tell you when newer charts are available • Only-offline mode shows exactly where you have coverage — no surprises offshore ROUTE PLANNING & NAVIGATION • Tap to drop waypoints, drag to fine-tune — legs redraw live and everything autosaves • Total distance, per-leg distance and bearing, ETA, and estimated fuel burn from your boat's cruise speed • Navigate a route with live distance, bearing, and ETA to the next waypoint — reverse direction anytime TIDES & CURRENTS • Worldwide tide and current predictions computed on your device — no internet required • Interactive tide graphs with highs, lows, slack water, and sun and moon times • Station icons on the chart show rising or falling conditions at a glance, up to 100 years ahead MARINE WEATHER • Wind speed, direction, and gusts, swell height, period, and direction, temperature, clouds, and precipitation • Detailed 3-hourly forecast grid plus a week-ahead outlook for any point you tap on the chart TRACK RECORDING • Record your voyage with live speed, distance, and time — pause and resume anytime • Live Activity keeps your stats on the Lock Screen and Dynamic Island • Review speed graphs and stats for every saved track, then share as a photo or GPX file MARINAS & ANCHORAGES • Marina and anchorage details powered by Waterway Guides: fuel, dockside depth, VHF channel, holding, and wind protection • The Nearby view surfaces marinas, anchorages, and tide stations within 10 nautical miles of your boat WAYPOINTS, GPX & SYNC • Drop custom markers with names, notes, colors, and icons — or enter exact coordinates in DD, DDM, or DMS • Import and export GPX waypoints, routes, and tracks to and from any other app or chartplotter • iCloud sync keeps your waypoints, routes, tracks, and boat profile up to date on all your devices BUILT FOR THE HELM • GPS follow and course-up modes with a projected course line, plus live speed and heading readouts • Caliper tool measures distance and bearing between any two points on the chart • One search for places, marinas, anchorages, tide stations, and your own waypoints, routes, and tracks • Snap a photo of your boat and OceanPulse estimates its specs to set up your vessel profile in seconds Perfect for sailing, fishing, powerboating, coastal cruising, kayaking, and offshore passages — from your home harbor to waters you've never explored. Read the EULA at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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.