Most accurate wave, height, wind, condition.
Most apps on sea condition underestimate the wave height and other measures involving marine measures. This is the best & most accurate marine data & predictor. Many other apps are so inaccurate they are not worth having despite all their data. As a Ph.D. statistical accuracy is critical to my scientific publications. Finally there is an app that consistently demonstrates scientific accuracy of Marine conditions.
Killian, Ph.D. about
Yachting Weather, v4.0.4