The world leader in marine navigation
OceanPulse combines charts, leading forecasts, and pro tools to turn ocean intelligence into decisions.
Let the weather pick the route.
Tap where you're leaving from, where you're going, and when. OceanPulse sails your boat through every hour of the forecast and draws the fastest way there, with the wind, the waves, and the watch-outs along the way.
- Three forecasts race
- GFS, ECMWF, and AIFS each route the passage at once, so you see where they agree before you commit.
- Routed for your boat
- Your polar, your draft and air draft, and the most wind and sea you'll take. Light air? Motor, or wait for it to fill in.
- Coast to ocean
- Near shore it keeps to NOAA charts and your depth. Offshore it rides the currents, and long crossings sail on past the forecast.
See the seafloor.
Shaded Relief lights high-resolution survey depths under the chart, so the bottom has shape: the edge of a channel, the ledge the fish hold on, the shoal that isn't on the paper chart yet.
- Read the bottom
- Ledges, channels, holes, and wrecks stand out, and the crosshair reads the surveyed depth wherever you point it.
- Wherever it's surveyed
- The US including Alaska, the UK, Ireland, France, the Netherlands, the German North Sea, New Zealand, and parts of Australia.
Ocean intelligence, delivered.
The sea state, the tide, the squall line, and the warning, live from the source and drawn where you're headed. Fewer surprises, better days on the water.
Rain radar
Watch storm cells march across the water, refreshed every ten minutes.
Waves and swell
Height, period, and direction across the whole basin, days ahead.
Ocean currents
See the Gulf Stream and every eddy before you choose your crossing.
Satellite clouds
Live cloud imagery from weather satellites around the world.
Tides and currents
About 5,800 NOAA stations, worked out on your phone, even offline.
Forecast alerts
Tell it the day you're waiting for, and it tells you when it's coming.
GMDSS on the map
Marine safety warnings read by AI and drawn where they apply.
Weather Replay
Go back to any day in the last 90 and see the weather you sailed through.
Tides & currents
Know the water before you get there
Slack, flood, and ebb for more than 5,800 stations across the US — computed on your device, so predictions are always there when the signal isn't.
- 5,800+ stations
- Every NOAA tide and current station, mapped around you.
- The day at a glance
- Rising, falling, slack — scan every nearby station in one list.
- Plan the window
- Full curves for any day — years ahead, no connection needed.
Free forever
Everything you need to navigate.
Charts, forecasts, and the tools to plan a day on the water cost nothing, and never will.
- Official NOAA charts
- The US, the Great Lakes, the territories, and the inland rivers, with unlimited offline downloads.
- Every forecast model
- Hourly wind, rain, sky, and air from ECMWF, AIFS, and GFS, side by side.
- Weather maps worldwide
- Wind, gusts, rain, cloud, and temperature, animated across the globe.
- Plan, mark, and record
- Markers, routes, and tracks, synced across your iPhone and iPad.
The details
And a whole lot more
- Markers
- Drop and organize your favorite spots.
- Routes
- Plan multi-leg trips point by point.
- Tracks
- Record where you've been, automatically.
- Distance measurements
- Measure any leg in a tap.
- GPX exports
- Take your data anywhere. No lock-in.
- Heading line
- See exactly where your bow points.
- Custom depth shading
- Shade depths to match your draft.
- Safety depth
- Highlight water too thin for your keel.
- Live Track Sharing
- Elite: share your live position with anyone.
- Weather data
- Wind, rain, and pressure at a glance.
- Information tool
- Tap any chart object for details.
- User driven
- Built with feedback from real boaters.
- Press & hold
- Forecast, distance, or a marker in one gesture.
- Forecast timeline
- Scrub any overlay hours or days ahead.
- Model picker
- Choose the model behind every layer.
- Overlay opacity
- Dial the weather down to read the chart.
“When I found myself at night and in unfamiliar waters, I had one friend checking the water depth with a pole and another looking for a boat nav app. Luckily we found OceanPulse. We were able to navigate home and I've been a user ever since.”
“Depth and soundings are accurate, works well off the coast. It's the best water nav app I found.”
“OceanPulse is dead simple to use and has free chart data and offline downloads. Finally a modern boat navigation app!”
“I use it every day fishing in the Long Island Sound, usually around Block Island or Newport. Great for tides, winds, weather. I mark all my favorite fishing spots and use the live location sharing when my buddies are out on the water. Great app. 5 stars!”
Start free. Go further when you're ready.
Try Pro or Elite free for 7 days.
Questions
Frequently asked questions
What chart coverage is included?
OceanPulse provides chart coverage for the US, the Great Lakes, US Territories, and the major inland rivers, using official NOAA and US Army Corps of Engineers data at no extra cost. We'll expand more globally in the future, and we promise to keep chart data at as low a cost as possible. See every chart on the coverage map →
Does it work offline or in low bandwidth conditions?
OceanPulse is designed for low bandwidth conditions. Charts, weather data, and GRIB files are stored on your device until expiry, and only the minimal amount of data is sent over the wire. A data connection is required for weather routing (Elite).
What weather models are included?
Forecasts come from Apple Weather and the GFS, ECMWF, and AIFS models, so you can compare predictions side by side. Waves come from GFS Wave, ECMWF WAM, and MFWAM, ocean currents from RTOFS, ECMWF Ocean, and Mercator, sea temperature from NOAA's Geo-Polar Blended and RTOFS, radar from NOAA's MRMS, and satellite clouds from the GOES, Himawari, and Meteosat weather satellites. In Weather Maps and on the chart you pick the model for each layer. Weather Routing routes every passage on GFS, ECMWF, and AIFS, and sails on with NOAA's long-range CFS wind past the end of the forecast. Climate's ten-year averages come from ECMWF's ERA5 record of past weather and Copernicus Marine's GLORYS ocean record. We expect to selectively grow the providers over time. See where each one reaches →
How often is the weather data refreshed?
All weather predictions are updated on an aggressive rolling basis. As soon as our data providers publish new data, it's available in OceanPulse within 15 minutes or less.
How far does the radar overlay reach?
Radar uses high-resolution MRMS data from NOAA's National Severe Storms Laboratory, covering the contiguous United States and its surrounding waters, as far as parts of southern Canada and the Bahamas. It also covers Alaska as far as its radars reach, Hawaii, Puerto Rico and the Virgin Islands, and Guam. See the radar coverage map →
What devices are supported?
OceanPulse is available on iPhone, iPad, Mac, and Android. We expect to launch a web version by the end of 2026.
Ready to dive in?
Start using OceanPulse today.