Tideline is a beautifully simple tide forecasting app for boaters, surfers, anglers, and beachgoers. Powered by official NOAA data across 400+ US coastal stations and the Great Lakes.
Built for people who actually need to know the tide.
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FEATURES
Today's tide chart with high/low predictions
Real-time water temperature, air temperature, and wind
Home screen widgets in three sizes
Lock screen widget for an at-a-glance tide check
400+ NOAA tide stations across the US coast
A calm, focused design that gets out of your way
TIDELINE PRO
Save multiple locations — track up to 10 favorite spots
7-day extended tide forecast
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WHY TIDELINE
Tide apps tend to be cluttered or overwhelming. Tideline takes a different approach — a clean interface, government-grade data, and widgets that put your next tide on your home screen or lock screen.
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NOAA-POWERED ACCURACY
Every tide prediction in Tideline comes directly from NOAA's Tides and Currents service — the same data used by the US Coast Guard, NOAA charts, and professional mariners. No third-party guesswork.
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DESIGNED FOR THE WATER
Whether you're planning a fishing trip, checking the surf, launching a kayak, or timing a beach walk, Tideline shows you what you need to know — fast, accurate, and beautiful.
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PRIVACY
Tideline doesn't collect your data. Location stays on your device and is used only to find the nearest NOAA station. There are no accounts, no tracking, and no analytics.
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Tide predictions are for general planning. Always consult official NOAA charts and local authorities for navigation.
Best tide app out there- easy to use and the only one I’ve found that has a lock screen widget. 5/5 stars!!
Great app
dianaalrusty
Very informative and love having it as a widget. Always know what’s happening with a quick glance.
Best tide app for divers
Dr. Carmelo Hodes III
I’m a PADI OWD certified scuba diver based out of Key West. I’ve found this app incredibly useful for tracking the tide for dives and other maritime activities. It’s sleek, easy to use and provides all the information I need without being cluttered. I would recommend this app to any diver or sea lover!
Great app
Dianaalrusty2
I appreciate the fishing info as well as having it always be on my lock screen.
Plan your time on the water.
• New Sun & Moon card: sunrise, sunset, moonrise, moonset, first light, and the current moon phase for every station.
• The tide forecast now reaches 30 days ahead, so you can plan trips weeks out. (Tideline Pro)
• Set a reference level: draw a line on the tide chart at a height that matters to you, like where your boat clears the bar. Tap the ruler icon to try it.
• Scrub the tide chart minute by minute for a smooth, precise readout.
• Forecast days now show their full date, so long scrolls stay clear.
• Faster loading, smarter reliability, and refinements throughout.
Version 1.6
The developer, Alan Hubbard, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Alan Hubbard
Size
2.9 MB
Category
Weather
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.