# 海快晴 海専門の気象情報サービス vs 潮汐

The clearest difference is review sentiment: 潮汐 at 100% against 海快晴 海専門の気象情報サービス's 27%. 海快晴 海専門の気象情報サービス's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price, update cadence, in-app purchases and monetization model 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 潮汐 sells 4 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 monthly, 潮汐 every 6 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 海快晴 海専門の気象情報サービス | 潮汐 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tide/id1600592667/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 27.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 34 MB | 58 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SURFLEGEND.INC](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 |


### 潮汐

[App page](https://appshunter.io/ios/app/tide/id1600592667)

Access real-time tide and tidal level information across the country. View detailed tide graphs, moon phases, and up to three days of weather forecasts. This app provides quick access to high and low tide data.

**Highlights:** Tide information, Tidal level data, Tide graphs, Moon phase information, 3-day weather forecast

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| 開発者応援募金 | $1.99 | 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 潮汐 free?

潮汐 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 潮汐 have ads?

潮汐 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 潮汐?

海快晴 海専門の気象情報サービス ships an update monthly, and 潮汐 every 6 weeks. Most recently, 海快晴 海専門の気象情報サービス was updated on November 6, 2026 and 潮汐 on November 3, 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.*