One comfort score for the boat you run, hour by hour, 11 days ahead. And a score for the boat itself, free.
84RoughThe water 41 Moderate
20′ bay boat
27CalmThe water 41 Moderate
36′ center console
Works on the US East, Gulf and West Coasts, Hawaii, Puerto Rico, the Bahamas and Bermuda. Not the Great Lakes or inland lakes yet.
What is free, and what the subscription adds ↓
Coastal and offshore saltwater of the US East, Gulf and West Coasts, Hawaii, Puerto Rico and the US Virgin Islands, the Bahamas and Bermuda, from the backwater out to the blue water.
Not covered yet: inland lakes, rivers above the tide, and the Great Lakes. Water outside coverage shows grey in the app.
Does it work on my water?Every account starts free, with no card and no trial clock: add your boat, see its score, run the gauge on a ride, read the report. The subscription adds the next 11 days, your spots and alerts, and every Helm page.
Monthly or yearly. Renews automatically; cancel anytime.
The subscription renews automatically at the price shown until you cancel, which you can do any time in your Apple Account settings. The introductory offer is one per Apple Account; the App Store shows it when you are eligible. If your subscription ends, you keep everything the free plan has: your boats, trips and saved spots stay on your phone, and the alerts you had on come back when you subscribe again.
Wind, waves, swell and current become a single score, hour by hour, for your boat. Not a generic sea state: the ride your boat will give you.
Swipe through the screens →
The water gets a number, and so does your boat on it. The next 12 hours are free for every account. With a subscription, drag through 11 days and watch the water change colour for the boat you run.
Harbors, sounds and rivers are scored on the same ruler as the open ocean, so the run across the harbor and the run to the ledge read the same way.
Tap START and the gauge comes alive: the needle is what your boat is doing, the hashmark is what the forecast said. Every account gets the gauge during a ride; a subscription adds the forecast comparison and the extra pages.
Every heading, scored. Head seas, beam seas and following seas are not the same ride, and the rose shows which way is smoother before you turn.
Your ride, your speed, the hardest hit and the rose on one page, built to be read at a glance with a wet thumb.
Wind and gusts, wave height and period, tide and current, first and last light, in plain numbers. The traditional data is all there, under the score, when you want to see why.
Your BoatScore is the roughest water, on the RideScore scale, that this boat can run in before its ride reaches Rough. Higher means a smoother-riding boat. One ruler for the water and the boat, so the two numbers can be read against each other.
The BoatScore page turns the number into days you recognise. For the 81 above, from a real boat:
Tested in lists the water your boat has actually been measured in: Calm, Moderate or Rough. Your boat's numbers change only for water you have run in, and RideScore never asks you to go out in rough water.
BoatScore is for powerboats. Every boat you add gets one, free, and each of your boats gets its own forecast. A ride counts toward the score when the phone is on a rigid mount and the boat is on plane long enough to measure.
RideScore is the water. Your boat is the same water, scored for your hull. Four bands, and anything over 255 shows as 255+.
RideScore forecasts how comfortable a ride will be. It is about comfort, not safety, and it never tells you whether to go out. It is not a navigation device and does not give routing. Always check the official National Weather Service marine forecast and use your own judgment.
Free for every boat