# WattWatch - The tide calendar — with flood alarm

> Apple Watch tide calendar with flood alarm and offline North Sea data. (iPhone/iPad app by Ralf Andrae.)

- Source: https://appshunter.io/ios/app/wattwatch-the-tide-calendar/id1508863635 (this page in markdown: same URL + `.md`)
- Developer: [Ralf Andrae](https://appshunter.io/developer/305338261)
- Category: Travel, Navigation
- Price: $2.99
- Rating: 1.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 3 MB
- Languages: English
- Released: 2020-04-20
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/wattwatch-the-tide-calendar/id1508863635/reviews.md

## What is WattWatch?

WattWatch is a tide calendar with alarm function for your Apple Watch. 
The app offers the following functions:

- 165 measuring stations for the North Sea
- Works without your iPhone
- Shows the sea level on the dial of your Apple Watch
- Finds the nearest measuring station automatically (GPS)
- 5-day preview (navigation with the digital crown)
- Offline mode (5 days)
- Flood alarm for the mudflat hike
- Navigates you on the shortest way out of the mudflats

More information about this app and other great apps for your Apple Watch can be found at
www.andraeweb.de

Have a nice holiday!

## Key features

- 165 North Sea measuring stations
- Works independently of iPhone
- Sea level on Apple Watch dial
- Automatic nearest station detection
- 5-day tide preview
- Offline mode
- Flood alarm for mudflats

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/wattwatch-the-tide-calendar/id1508863635/reviews.md

### 1/5 — Face called “always in focus “ not available. Only three day is. Using this in the US.

*2022-01-02*

Face called “always in focus “ not available. Only three day is. Using this in the US.

### 1/5 — No UK tides! Only German and Dutch ports

*2021-02-18*

This isn’t useful at all for anyone wanting tides in UK. While it claims to have 100 North Sea ports, none are UK

## Frequently asked questions about WattWatch

### What is WattWatch?

WattWatch is a tide calendar designed for Apple Watch that displays sea levels and provides a flood alarm. It offers data from 165 North Sea measuring stations and can work independently of your iPhone.

### Does WattWatch work offline?

Yes, WattWatch offers an offline mode that provides tide data for the next 5 days. This allows you to check sea levels even without an internet connection.

### How does WattWatch find the nearest tide station?

WattWatch uses your Apple Watch's GPS to automatically detect and display the nearest measuring station. This ensures you get the most relevant tide information for your location.

### What is the flood alarm feature in WattWatch?

The flood alarm is a key feature designed to alert you to potential flooding, especially useful for activities like mudflat hiking. It can help you navigate safely out of mudflats.

### What devices is WattWatch compatible with?

WattWatch is designed for the Apple Watch and also supports iPhone and iPod. It leverages the Apple Watch's capabilities for on-the-go tide information.

### How often is WattWatch updated?

The latest version of WattWatch is 2.0.0, which was last updated on April 14, 2022. This indicates a relatively stable release cycle for the application.

### What is the price of WattWatch?

WattWatch is a paid application, available for $2.99. This one-time purchase grants you access to all its tide calendar and flood alarm features.

### What is the age rating for WattWatch?

WattWatch has an age rating of 4+, making it suitable for a wide range of users. This rating suggests content is generally appropriate for young children.

## Version history (last 4 releases)

### 2.0.0 — 2022-04-14

- 5 days overview
- Voice output
- Map view
- Sun and moon history
- 165 measuring stations (DE, NL, GB)
- units switchable
- the user interface has been redesigned

ATTENTION! OPERATION CHANGED:
- Scroll through the tide history with the Digital Crown
- Tap on tide to activate voice output
- Double tap to scroll to the current tide
- Hold 2 seconds to get into settings

### 1.1.0 — 2022-03-22

- Adaptations of the user interface to the Apple Watch Series 7
- New stations (English coast)
- New database and new calculation of tides

### 1.0.1 — 2020-04-28

Unfortunately there are two bugs in version 1.0.0:
- The displayed water level for the complications "Graphic Corner" and "Graphic Circular" was displayed incorrectly when the tide was falling. The water level is now displayed correctly.
- The loading process was aborted prematurely if the Internet connection was slow. This error has been fixed.

### 1.0.0 — 2020-04-20

No release notes.

## More apps by Ralf Andrae

- [CamperSet](https://appshunter.io/ios/app/camperset/id309010388)
- [SatFinder](https://appshunter.io/ios/app/satfinder/id397993104)
- [DVB-T2 Finder](https://appshunter.io/ios/app/dvb-t2-finder/id619899410)
- [CaravanSet2](https://appshunter.io/ios/app/caravanset2/id1459220398)
- [TankUhr - Strom+Benzin+Diesel](https://appshunter.io/ios/app/tankuhr-strom-plus-benzin-plus-diesel/id1481078953)
- [EggTimer!](https://appshunter.io/ios/app/eggtimer/id1495647154)

All apps by Ralf Andrae: https://appshunter.io/developer/305338261

---

*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 2026-06-10.*