# 河川カメラ vs 河川地図

The clearest difference is price: 河川カメラ at Free against 河川地図's $1.99. 河川カメラ also leads on update cadence (every 2 weeks vs every 13 months) and review sentiment (24% vs 0%). 河川地図's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

河川カメラ is free to download; 河川地図 costs $1.99 up front. 河川カメラ sells 4 one-off in-app purchases. 河川地図 asks for nothing beyond the download.

河川カメラ ships an update every 2 weeks, 河川地図 every 13 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | 河川カメラ | 河川地図 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/river/id1566760183/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **24.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 54 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [Masahiro Tomosada](https://appshunter.io/developer/1587710118) |

## What reviewers say

### 河川カメラ

[App page](https://appshunter.io/ios/app/river/id1566760183)

Access real-time river conditions and weather forecasts across Japan. View over 10,000 river locations on a map and check detailed precipitation, temperature, and snow data. Stay informed about weather changes to prepare for heavy rain and other natural events.

**Highlights:** Real-time river information map, Over 10,000 river locations, Live camera stills of rivers, Automatic and manual data updates, Detailed weather forecasts, Rainfall intensity visualization, Favorite locations

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

**In-app purchases (4)**

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


### 河川地図

[App page](https://appshunter.io/ios/app/id1644566839)

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

**In-app purchases:** none


## Frequently asked questions

### Is 河川カメラ free?

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

### Is 河川地図 free?

河川地図 costs $1.99, with no in-app purchases.

### Do 河川カメラ or 河川地図 have ads?

河川カメラ shows ads; 河川地図 does not.

### Which is updated more often, 河川カメラ or 河川地図?

河川カメラ ships an update every 2 weeks, and 河川地図 every 13 months. Most recently, 河川カメラ was updated on October 27, 2026 and 河川地図 on October 27, 2026.

---

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