# 道路交通 渋滞情報 vs 流域 / Ryuiki

The clearest difference is in-app purchases: 流域 / Ryuiki at none against 道路交通 渋滞情報's 4. 流域 / Ryuiki also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). 道路交通 渋滞情報's advantage is iOS requirement (15.6 vs 17.0). On price and device support there is nothing between them.

Both are free to download. 道路交通 渋滞情報 sells 4 one-off in-app purchases. 流域 / Ryuiki asks for nothing beyond the download.

道路交通 渋滞情報 ships an update monthly, 流域 / Ryuiki every 2 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 道路交通 渋滞情報 | 流域 / Ryuiki |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 43.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 10 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [KENTA TORIMOTO](https://appshunter.io/developer/1880253937) |

## What reviewers say

### 道路交通 渋滞情報

[App page](https://appshunter.io/ios/app/id1608843582)

Get real-time traffic and congestion information for general roads across Japan. Avoid traffic jams and plan your routes efficiently with up-to-date road status updates, including accidents and closures.

**Highlights:** Real-time congestion data, General road information, Accident and closure alerts, Nationwide coverage, Route planning assistance

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| アプリケーション開発者への応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


### 流域 / Ryuiki

[App page](https://appshunter.io/ios/app/ryuiki/id6759816013)

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

**In-app purchases:** none


## Frequently asked questions

### Is 道路交通 渋滞情報 free?

道路交通 渋滞情報 is free to download, with in-app purchases available.

### Is 流域 / Ryuiki free?

流域 / Ryuiki is free to download, with no in-app purchases.

### Do 道路交通 渋滞情報 or 流域 / Ryuiki have ads?

道路交通 渋滞情報 shows ads; 流域 / Ryuiki does not.

### Which is updated more often, 道路交通 渋滞情報 or 流域 / Ryuiki?

道路交通 渋滞情報 ships an update monthly, and 流域 / Ryuiki every 2 days. Most recently, 道路交通 渋滞情報 was updated on October 24, 2026 and 流域 / Ryuiki on October 20, 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.*