# タイドと気象情報 vs 潮時計

The clearest difference is in-app purchases: 潮時計 at none against タイドと気象情報's 4. 潮時計 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. タイドと気象情報 sells 4 in-app purchases, starting at $0.49 per month. 潮時計 asks for nothing beyond the download.

タイドと気象情報 ships an update fortnightly, 潮時計 weekly. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | タイドと気象情報 | 潮時計 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 69 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mitsuhiro Shirai](https://appshunter.io/developer/602643484) | [Tsuyoshi Yokoyama](https://appshunter.io/developer/6794326203) |

## What reviewers say

### タイドと気象情報

[App page](https://appshunter.io/ios/app/surftidex/id1637360116)

This app provides tide graphs, wave information, and weather forecasts for marine sports like surfing and fishing. It displays information in customizable cards, offering detailed insights into tides, weather patterns, and news. Supports widgets and Apple Watch for convenient access.

**Highlights:** Tide graphs and forecasts, Wave and weather information, Customizable information cards, Weather map and nowcasting, Keyword-based news aggregation, Web link saving, Widget and Apple Watch support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ブロンズ | $0.49 | per month |
| シルバー | $1.99 | per 3 months |
| ゴールド | $2.99 | per 6 months |
| プラチナ | $3.99 | per year |


### 潮時計

[App page](https://appshunter.io/ios/app/id6794326201)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is タイドと気象情報 free?

タイドと気象情報 is free to download, with in-app purchases available.

### Is 潮時計 free?

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

### Do タイドと気象情報 or 潮時計 have ads?

タイドと気象情報 shows ads; 潮時計 does not.

### Which is updated more often, タイドと気象情報 or 潮時計?

タイドと気象情報 ships an update fortnightly, and 潮時計 weekly. Most recently, タイドと気象情報 was updated on September 21, 2026 and 潮時計 on September 12, 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.*