# SurfTideWatch (Tide graph) vs コレクトサーフアプリ

The clearest difference is review sentiment: コレクトサーフアプリ at 100% against SurfTideWatch (Tide graph)'s 24%. SurfTideWatch (Tide graph)'s advantage is in-app purchases (none vs 7) and iOS requirement (13.2 vs 15.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. コレクトサーフアプリ sells 7 in-app purchases, starting at $5.99 per month. SurfTideWatch (Tide graph) asks for nothing beyond the download.

SurfTideWatch (Tide graph) ships an update every 3 weeks, コレクトサーフアプリ every 2 weeks. Both last shipped on September 23, 2026.

## The numbers

| Metric | SurfTideWatch (Tide graph) | コレクトサーフアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (8 ratings)](https://appshunter.io/ios/app/surftidewatch-tide-graph/id1507871573/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 24.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 27 MB | 103 MB |
| Requires iOS | **13.2** | 15.5 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mitsuhiro Shirai](https://appshunter.io/developer/602643484) | [Gene,Inc.](https://appshunter.io/developer/1674796053) |

## What reviewers say

### SurfTideWatch (Tide graph)

[App page](https://appshunter.io/ios/app/surftidewatch-tide-graph/id1507871573)

Visualize tide graphs and astronomical events for marine sports. Select from thousands of global tide points and synchronize data to your Apple Watch. Customize place names and utilize complications for quick access to tide information.

**Highlights:** Tide graph visualization, Global tide point selection (10,000+), Synchronization with Apple Watch, Customizable place names, Astronomical event display (sunrise, sunset), Apple Watch complications support

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

**In-app purchases:** none


### コレクトサーフアプリ

[App page](https://appshunter.io/ios/app/id6445918217)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite Foundation | $5.99 | per month |
| 初心者脱却コース | $12.99 | per month |
| 平面でのサーフスケート練習 | $9.99 | one-time |
| 斜面でのサーフスケート練習 | $9.99 | one-time |
| 段ボールトレーニング | $9.99 | one-time |
| 陸で学ぶ”テイクオフマスター” | $69.99 | one-time |
| Surf Start – ビギナープログラム | $249.99 | one-time |


## Frequently asked questions

### Is SurfTideWatch (Tide graph) free?

SurfTideWatch (Tide graph) is free to download, with no in-app purchases.

### Is コレクトサーフアプリ free?

コレクトサーフアプリ is free to download, with in-app purchases available.

### Do SurfTideWatch (Tide graph) or コレクトサーフアプリ have ads?

Both SurfTideWatch (Tide graph) and コレクトサーフアプリ show ads.

### Which is updated more often, SurfTideWatch (Tide graph) or コレクトサーフアプリ?

SurfTideWatch (Tide graph) ships an update every 3 weeks, and コレクトサーフアプリ every 2 weeks. Most recently, SurfTideWatch (Tide graph) was updated on September 23, 2026 and コレクトサーフアプリ 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.*