TidalFlow

About TidalFlow

Tide predictions for every U.S. coast — Atlantic, Gulf, Pacific, Alaska, Hawaii, the Great Lakes, and the Pacific Islands. Over 400 NOAA stations.

Every other tide app is a billboard with a tide chart hiding underneath. TidalFlow is the tide chart.

Built for fishers, surfers, kayakers, boaters, and anyone who plans their day around the water. NOAA-accurate predictions for over 400 stations covering every U.S. coast — Atlantic, Gulf, Pacific, Alaska, Hawaii, the Great Lakes, and the Pacific Islands. No ads. No accounts. No tracking. No analytics. Open the app, see the tide, close the app.

WHY THIS APP EXISTS
Every tide app on the Play Store is infested with intrusive video ads, account walls, and trackers. So I built the app I wanted: clean, beautiful, fast, and respectful of your attention.

WHAT YOU GET

🌊 Beautiful tide chart
Animated curve with gradient fill, glowing teal on a deep ocean backdrop. Today, 3-day, or 7-day view. The kind of chart you'd actually want on your home screen.

⏱ Next tide countdown
Time until the next high or low, with a rising or falling indicator and live progress dot. Glanceable at arm's length.

📅 Today's schedule
Every high and low for the day in one tidy table. Times in your preferred 12 or 24-hour format.

📊 Live marine conditions
Real-time water level, water temperature, air temperature, wind speed and direction, and atmospheric pressure. Pulled live from your selected NOAA station.

⚠ Weather alerts
Marine and coastal advisories, watches, and warnings straight from the National Weather Service. Filter out Small Craft Advisories if you're on a bigger boat.

⭐ Favorites
Star your home break, fishing spot, or marina. One tap to switch.

🗺 Station map
Browse 400+ NOAA stations on an OpenStreetMap view. Find the closest one to you in seconds.

☀ Daylight Boost
A higher-contrast mode that punches up text and chart stroke for sunlit boat decks, beaches, and tidal flats. The dashboard stays readable when your screen is fighting noon sun.

⚙ Built around your preferences
Imperial or metric. 12 or 24-hour time. Six tidal datum options (MLLW, MSL, MHHW, MHW, MLW, MTL). Four text-size presets for accessibility.

PRIVACY PROMISE
• Zero ads. Zero tracking. Zero analytics. Zero accounts.
• The only required permission is INTERNET — to fetch tide data from NOAA.
• Location permission is OPTIONAL, used only for the nearby-stations feature, and never leaves your device.
• HTTPS-only. No personal data is ever transmitted.
• Favorites and settings are stored locally on your phone.

DATA SOURCES
• Tide predictions and conditions: NOAA Tides & Currents (api.tidesandcurrents.noaa.gov)
• Marine and coastal weather alerts: National Weather Service (weather.gov)
• Station map tiles: OpenStreetMap (© OpenStreetMap contributors)

WHO IT'S FOR
Anglers planning a tide window for striped bass off the Jersey coast. Surfers checking the swell at Trestles. Kayakers timing the slack in Puget Sound. Charter captains in the Gulf. Beachcombers on the Outer Banks. Anyone who cares what the water is doing.

If you spend any time on, in, or near U.S. coastal water — and you're tired of watching a 30-second car commercial just to check tomorrow's high tide — TidalFlow is for you!