# TideDeck: Tide Times & Charts — Offline tides, worldwide

> Offline tides, worldwide (iPhone/iPad app by MARITIME MASTER LIMITED.)

- Source: https://appshunter.io/ios/app/tidedeck-tide-times-and-charts/id6787431689 (this page in markdown: same URL + `.md`)
- Developer: [MARITIME MASTER LIMITED](https://appshunter.io/developer/1107589346)
- Category: Weather, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 23 MB
- Languages: American English
- Released: 2026-07-20
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/tidedeck-tide-times-and-charts/id6787431689/reviews.md

## What is TideDeck?

Tide times for anywhere on Earth, worked out right on your device. No signal, no account, no ads.

TideDeck gives you the day's highs and lows, a live water-height curve you can scrub minute by minute, and a year-ahead planner, all computed offline. Along US coasts it draws on 1,302 NOAA stations. Everywhere else, it models tides from a global ocean model, so you're covered on any shoreline in the world.

SEE THE TIDE, MINUTE BY MINUTE
- Current water height and whether the tide is rising or falling
- Next high and low water, each with a live countdown
- An interactive curve you scrub by hand, with haptics that tick at every high and low
- Today's high and low times and heights in a clean table
- Day and night shading, a live now marker, and HIGH/LOW labels

ANYWHERE, OFFLINE
- Modelled tides for your exact spot, anywhere in the world
- Exact predictions at 1,302 measured US stations, clearly badged
- No signal needed, it is all computed on your device
- Search by name, state or ID, find the nearest, save favourites

PLAN AROUND THE WATER
- Browse the days either side, then jump straight back to now
- Best days ahead surface the lowest and highest water for a swim, a launch, or a rockpool
- Week and month charts show the swing from springs to neaps
- A tidal character card reads the type and spring range of your spot at a glance

SUN AND MOON
- Sunrise, sunset, moon phase, illumination and day length
- An interactive scene showing how the Sun and Moon align to shape springs and neaps

BEAUTIFUL AND LEGIBLE
- A premium interface, contrast-checked in light and dark
- Five themes, plus a high-legibility reading mode designed with dyslexic readers in mind
- Heights in metres, feet, or a mix

TIDEDECK PRO (one-time purchase, no subscription)
- Full-year forecast horizon with an offline year scrubber
- Safe-window planner: set the water depth you need, for your draft, a sandbar, or a swim, and it finds the windows, always erring on the side of less water
- All five themes
One purchase, yours forever. Stations, today's tides, the live curve and the Sun & Moon scene stay free.

HONEST BY DESIGN
TideDeck predicts the astronomical tide using harmonic synthesis, the same method behind official tide tables. It does not model weather: wind and pressure push real water above or below any prediction, so every height carries a confidence band. Measured US stations are typically within a few centimetres; modelled tides elsewhere are clearly badged and coarser near complex coasts and harbours.

For planning, not for navigation. Always cross-check official sources on the water.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| TideDeck Pro Yearly | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| TideDeck Pro Lifetime | $39.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-07-23

Fixed issues with scrubbing the day on the waves page.
Other minor bug fixes and improvements.

### 1.0 — 2026-07-20

No release notes.

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All apps by MARITIME MASTER LIMITED: https://appshunter.io/developer/1107589346

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*