Tide window planner
Know when the shore opens.
ShoreWindow is a low tide planner and tide times app for iPhone, iPad and Android. Not a tide graph to decode. The time you can actually go. Save a shore, and ShoreWindow answers with the next window that matches your own rules: tide band, daylight, duration and wave height.
Get ShoreWindow
Live on Google Play now. The iPhone and iPad version is with the App Store.
The answer, first
A tide table tells you the water. This tells you the day.
You do not want to know that low water is 0.3 m at 6:47. You want to know which morning this month gives you ninety minutes below the weed line, in daylight, with the sea flat enough to bother. ShoreWindow reads the tide, the sun, the moon and the wave forecast together, and gives back the windows that pass, with the time you should leave.
| Day | Window | Length | Matches |
|---|---|---|---|
| Mon 24 | 6:25 – 7:52 AM | 1 hr 26 | below 0.3 m |
| Tue 25 | 6:26 – 8:41 AM | 2 hr 14 | below 0.3 m |
| Thu 27 | 6:13 – 7:39 PM | 1 hr 25 | wave 0.6 m |
| Sat 29 | 12:08 – 1:33 PM | 1 hr 24 | daylight |
Illustrative sample data · every figure carries its own station and datum
What it does
Built for people who walk to the water.
ShoreWindow is for rockpoolers, beachcombers, coastal foragers, photographers chasing golden hour on the sand, and dog walkers whose beach is only reachable at low water. It is not for boaters or sailors who need currents, tidal streams or navigation data.
Open it, and it has already answered
Every shore you keep shows its next matching window the moment the app opens: when it starts, how long it lasts, whether daylight covers the whole thing, and whether the tide is falling or making.
Thirty days at a glance
Every low water for the next month laid out on one board, matches marked, with the lowest water in the period called out. Page it forward a year.
Search shores by conditions
Ask for low water below a height, at least an hour long, in daylight, with the wave forecast under a limit, across every spot and every day at once. High water works the same way.
Worked out on your phone
Set a rule and get told before the window opens. The scheduling happens on the device, no server watching your shore, no account to sign in to.
The rest of the picture
First light, sunrise, both golden hours, sunset, last light, moon phase and moonrise for every shore. Air, wind and wave height where the forecast reaches, and water temperature where a gauge measures it.
Works with no signal
Tide, sun and moon are computed on your phone from published harmonic constants. A cove with zero bars still gets a full window. Only weather and waves need a connection, and you can turn that off.
Where the number comes from
Every figure says who told it to you.
Tap any shore and you get the station the prediction is made from, how far away it is, its datum, its provider and when the data was imported, plus an honest confidence tier, in plain words rather than a false decimal place. 5,740+ coastal stations across 108 countries, so this is not a one-country app with the rest of the world bolted on.
Checked against official tide tables- Sixty-three stations are individually checked against published tide tables, and say so on the station page.
- Every other station still carries its own name, provider and datum next to every number.
- Predictions are modelled: the app says so, and says it is not for navigation.
Screens
Quiet enough to read in the wind.
Big times, monospaced figures, one sea-teal mark on anything that matched. Nothing bounces, nothing decorates, and the sentence that matters is never smaller than the chrome around it.
Pricing
The answer itself is never withheld.
The free tier always tells you when your one saved shore next opens, with seven days of tables and one alert, and it never expires. Pro is $14.99 a year with a 7-day free trial, $2.99 a month, or $39.99 once for a lifetime unlock.
Free
The next windowNo account, no trial clock
- One saved shore, answered every time you open the app
- Seven days of tables, curves and windows
- Light, moon and weather cards in full
- One alert
ShoreWindow Pro
$14.99 a year, $2.99 a month, or $39.99 onceLifetime is a one-time unlock, not a subscription
- Unlimited saved shores
- The 30-day board, paged forward a year
- Finder across every shore and every day
- Recurring alert rules, calendar export and widgets on every shore
The free tier is not a trial and does not expire. The yearly plan starts with a 7-day free trial; yearly and monthly renew until you cancel. Lifetime is $39.99, bought once, and never renews. Apple Universal Purchase and Family Sharing apply, so one purchase covers your iPhone and iPad. Prices are in US dollars. Current pricing is shown on the App Store and Google Play, it varies by country.
Questions
Questions
Plain answers to the things people ask before they install.
What is ShoreWindow?
ShoreWindow is a low tide planner and tide times app for iPhone, iPad and Android. You save a shore, and it answers with the next window that matches your own rules for tide height, daylight, duration and wave height. Tide, sun and moon are computed on your phone from published harmonic constants.
Who is ShoreWindow for?
It is for people who walk to the water: rockpoolers, beachcombers, coastal foragers, photographers chasing golden hour, and dog walkers whose beach is only reachable at low water. It is not for boaters or sailors who need currents, tidal streams or navigation data, and it does not assess sea safety.
How much does ShoreWindow cost? Is it a subscription?
The free tier does not expire: one saved shore, seven days of tables and windows, and one alert. Pro is $14.99 a year with a 7-day free trial, $2.99 a month, or $39.99 once for a lifetime unlock. Lifetime is not a subscription. Prices are in US dollars and vary by country.
What platforms is ShoreWindow on? Is there a Mac or Windows version?
ShoreWindow runs on iPhone, iPad and Android phones and tablets. It is live on the App Store and Google Play. There is no Mac, Windows or Apple Watch version; a shore planner is a phone-in-pocket product, so it is mobile-only by design.
Do I need an account? Is my data private?
No account, no login, no cloud sync. Your saved shores stay on your phone, and there are no ad SDKs and no usage analytics. Anonymous crash reports are on by default and can be turned off in Settings. Only weather and wave lookups need a connection, and you can switch those off. Pro adds calendar export.
Does ShoreWindow work offline with no signal?
Yes. Tide, sun and moon are computed on the device from published harmonic constants, so a cove with zero bars still gets a full window. Only the weather and wave forecast needs a connection, and you can turn that off. Coverage is 5,740+ coastal stations across 108 countries, not a one-country app.
Is the tide data accurate for my coast?
Every height shows the station it was predicted from, its distance from your spot and its datum, for example 0.42 m MLLW. Sources are CC-BY licensed, including NOAA CO-OPS, Kartverket, LINZ, DMI, MET Norway and Queensland DTMR, and sixty-three stations are individually checked against published tide tables. Predictions are modelled and not for navigation.
Is ShoreWindow an alternative to Tides Near Me or Tide Alert?
Yes, for people who plan trips to the shore rather than read a single station. Tides Near Me and Tide Alert are single-location lookups; ShoreWindow searches every saved spot across a month for the tide, daylight and wave conditions you set. It has no ads, and a $39.99 lifetime unlock is always available beside the subscriptions.