Try Tidebook Pro free for 7 days: tidal currents, wind and waves with a 3-day forecast, solunar alerts, any date, and your Apple Watch. The trial starts only when you tap it. No payment, nothing renews, and the app shows how many days are left. When it ends, your alerts and favorites stay saved. Pro is still one payment, never a subscription. Everything that was free stays free.

Tidebook now runs on iPad, with a two-column Today screen, a sidebar, and Split View. Apple Watch: all your favorite stations, not just one. Turn the Digital Crown to move between them. New watch complication with the day's tide curve, and you can pin each complication to a station. Fixed: watch complications could show no tide. They now get the same data as the watch app. The 3-day wind and wave forecast now opens at 189 more stations that have no NOAA sensor nearby. The watch, widgets and alerts now follow your iPhone's 24-hour clock setting. Where the water barely moves (Caribbean, Gulf of Mexico), ripples of less than half an inch no longer show up as extra highs and lows.

Tidal currents, right on the tide chart: slack, flood and ebb with speed and direction, from 2,785 NOAA current stations, worked out on your iPhone. The Today chart now spans 48 hours — swipe to tonight and tomorrow. Solunar times are now free for today, and the calendar shows them for every day. Tidebook Pro adds any date and an alert before each major period. 3-day wind and wave forecast from the National Weather Service. Weather Service alerts on Today when one is active: rip currents, beach hazards, coastal flooding, small craft and gale warnings. Print a whole month as a PDF, export it as CSV, or add it to your Calendar. Moonrise and moonset now follow the U.S. Naval Observatory definition exactly. Rate Tidebook from Settings — it helps other boaters find it.