# 河川カメラ vs みえ防災ナビ

The clearest difference is in-app purchases: みえ防災ナビ at none against 河川カメラ's 4. みえ防災ナビ also leads on ads (none vs shown) and iOS requirement (12.1 vs 15.6). 河川カメラ's advantage is review sentiment (24% vs 0%). On price, update cadence and device support there is nothing between them.

Both are free to download. 河川カメラ sells 4 one-off in-app purchases. みえ防災ナビ asks for nothing beyond the download.

河川カメラ ships an update every 2 weeks, みえ防災ナビ monthly. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 河川カメラ | みえ防災ナビ |
| --- | --- | --- |
| Price | Free | Free |
| 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** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 104 MB |
| Requires iOS | 15.6 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [三重県](https://appshunter.io/developer/1076073137) |

## 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 |


### みえ防災ナビ

[App page](https://appshunter.io/ios/app/id6737084436)

**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 みえ防災ナビ free?

みえ防災ナビ is free to download, with no in-app purchases.

### Do 河川カメラ or みえ防災ナビ have ads?

河川カメラ shows ads; みえ防災ナビ does not.

### Which is updated more often, 河川カメラ or みえ防災ナビ?

河川カメラ ships an update every 2 weeks, and みえ防災ナビ monthly. Most recently, 河川カメラ was updated on October 23, 2026 and みえ防災ナビ on October 11, 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.*