# 川レーダー｜ダム放流・水位アラート vs 河川カメラ RiverPulse

The clearest difference is in-app purchases: 川レーダー｜ダム放流・水位アラート at none against 河川カメラ RiverPulse's 3. 川レーダー｜ダム放流・水位アラート also leads on ads (none vs shown) and iOS requirement (15.1 vs 18.6). On update cadence and device support there is nothing between them.

川レーダー｜ダム放流・水位アラート ships an update every 3 weeks, 河川カメラ RiverPulse monthly. The most recent releases landed on September 12, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 川レーダー｜ダム放流・水位アラート | 河川カメラ RiverPulse |
| --- | --- | --- |
| Price | — | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 46 MB | 101 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUKI NISHIGAWA](https://appshunter.io/developer/6773584761) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### 川レーダー｜ダム放流・水位アラート

[App page](https://appshunter.io/ios/app/id6773584759)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 川レーダー｜ダム放流・水位アラート free?

Pricing for 川レーダー｜ダム放流・水位アラート is not currently listed on the App Store.

### Is 河川カメラ RiverPulse free?

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

### Do 川レーダー｜ダム放流・水位アラート or 河川カメラ RiverPulse have ads?

河川カメラ RiverPulse shows ads; 川レーダー｜ダム放流・水位アラート does not.

### Which is updated more often, 川レーダー｜ダム放流・水位アラート or 河川カメラ RiverPulse?

川レーダー｜ダム放流・水位アラート ships an update every 3 weeks, and 河川カメラ RiverPulse monthly. Most recently, 川レーダー｜ダム放流・水位アラート was updated on September 12, 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.*