# タイドスコープ vs TideFish

The clearest difference is ads: タイドスコープ at none against TideFish's shown. タイドスコープ also leads on update cadence (weekly vs fortnightly) and device support (3 vs 1). TideFish's advantage is iOS requirement (17.6 vs 26.2). On in-app purchases there is nothing between them.

タイドスコープ ships an update weekly, TideFish fortnightly. The most recent releases landed on September 12, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | タイドスコープ | TideFish |
| --- | --- | --- |
| Price | — | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tidescope/id6760695853/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 11 MB | 6 MB |
| Requires iOS | 26.2 | **17.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masahiko Shirai](https://appshunter.io/developer/1885782363) | [Osamu Ishigami](https://appshunter.io/developer/901265058) |

## What reviewers say

### タイドスコープ

[App page](https://appshunter.io/ios/app/tidescope/id6760695853)

This app provides easy-to-understand tide forecasts based on real-time data from 238 observation stations nationwide. It displays current tide levels, high and low tide times, and tide cycles, along with weather and wave information.

**Highlights:** Real-time tide level display, High/low tide times and heights, Tide cycle display, Tide level graphs with weather, Weather, wave, and wind data, GPS for nearest station, Widget and Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### TideFish

[App page](https://appshunter.io/ios/app/tidefish/id6789813654)

**In-app purchases:** none


## Frequently asked questions

### Is タイドスコープ free?

Pricing for タイドスコープ is not currently listed on the App Store.

### Is TideFish free?

TideFish is free to download, with no in-app purchases.

### Do タイドスコープ or TideFish have ads?

TideFish shows ads; タイドスコープ does not.

### Which is updated more often, タイドスコープ or TideFish?

タイドスコープ ships an update weekly, and TideFish fortnightly. Most recently, タイドスコープ was updated on September 12, 2026 and TideFish on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*