# 海快晴 海専門の気象情報サービス vs 河川カメラ RiverPulse

The clearest difference is ads: 海快晴 海専門の気象情報サービス at none against 河川カメラ RiverPulse's shown. 海快晴 海専門の気象情報サービス also leads on iOS requirement (13.0 vs 18.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 海快晴 海専門の気象情報サービス sells 1 in-app purchase, starting at $3.99 per month and 河川カメラ RiverPulse sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

海快晴 海専門の気象情報サービス ships an update every 4 weeks, 河川カメラ RiverPulse monthly. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 海快晴 海専門の気象情報サービス | 河川カメラ RiverPulse |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 101 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社サーフレジェンド](https://appshunter.io/developer/781382725) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### 海快晴 海専門の気象情報サービス

[App page](https://appshunter.io/ios/app/id1064920309)

Provides detailed marine weather forecasts for various water sports and leisure activities. Offers real-time wind forecasts, wave predictions, and tide information for over 18,000 coastal locations.

**Highlights:** Real-time wind forecasts, Wave and tide predictions, 18,000+ coastal locations, Dual forecast comparison (proprietary & JMA), GPS-based location search, Push notifications for conditions

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 海快晴 有料登録コース | $3.99 | per month |


### 河川カメラ RiverPulse

[App page](https://appshunter.io/ios/app/riverpulse/id6787630906)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


## Frequently asked questions

### Is 海快晴 海専門の気象情報サービス free?

海快晴 海専門の気象情報サービス is free to download, with in-app purchases available.

### Is 河川カメラ RiverPulse free?

河川カメラ RiverPulse is free to download, with in-app purchases available.

### Do 海快晴 海専門の気象情報サービス or 河川カメラ RiverPulse have ads?

河川カメラ RiverPulse shows ads; 海快晴 海専門の気象情報サービス does not.

### Which is updated more often, 海快晴 海専門の気象情報サービス or 河川カメラ RiverPulse?

海快晴 海専門の気象情報サービス ships an update every 4 weeks, and 河川カメラ RiverPulse monthly. Most recently, 海快晴 海専門の気象情報サービス was updated on September 26, 2026 and 河川カメラ RiverPulse on September 23, 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.*