# RadMonJP — Radiation Monitoring in Japan

> Radiation Monitoring in Japan (iPhone/iPad app by RR Aware Studio.)

- Source: https://appshunter.io/ios/app/radmonjp/id6737837347 (this page in markdown: same URL + `.md`)
- Developer: [RR Aware Studio](https://appshunter.io/developer/1439301679)
- Category: Utilities, Travel
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 9 MB
- Languages: American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2025-01-13
- Data updated: 2026-09-15
- User reviews in markdown: https://appshunter.io/ios/app/radmonjp/id6737837347/reviews.md

## What is RadMonJP?

RadMonJP is a radiation monitoring app that helps you check radiation levels across Japan in real time.

Key features:
- Browse monitoring posts nationwide in a clear dashboard
- View radiation levels on an interactive map
- Check rankings to quickly identify higher readings
- See each monitoring post's current reading, weather, and 24-hour trend
- Customize daily reports and emergency alerts

Whether you are checking conditions near home or planning a trip, RadMonJP helps you find the information you need quickly for greater peace of mind for you and your family.

This app is supported by advertising. Join the annual sponsorship program to remove ads and support future development.

Privacy Policy: https://radmon.jp/privacy
Terms of Use: https://radmon.jp/terms

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| プレミアム1ヶ月 | $0.99 | per month |
| Platinum sponsor | $49.99 | per year |
| Diamond sponsor | $99.99 | per year |
| Gold sponsor | $19.99 | per year |
| Silver sponsor | $9.99 | per year |
| Bronze | $4.99 | per year |



## Version history (last 5 releases)

### 6.0.1 — 2026-09-10

Minor improvements.

### 6.0.0 — 2026-09-08

Version 6.0 refreshes the app's design and usability.

- Updated designs for the dashboard, radiation map, and rankings
- Clearer presentation of monitoring-post weather and 24-hour trends
- Additional improvements and bug fixes

### 5.0.6 — 2026-04-01

不具合修正を行いました。

### 5.0.5 — 2026-03-29

修正
　• プッシュ通知のタイトルおよび本文が正しく解析されない不具合を修正しました。

新機能
　• 天気情報を表示できるようになりました。

### 5.0.4 — 2026-03-24

軽微な改善を行いました。

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## More apps by RR Aware Studio

- [Globo X - Web language menu](https://appshunter.io/ios/app/globo-x-web-language-menu/id6743930042)
- [究極漢字検索](https://appshunter.io/ios/app/id6753898141)

All apps by RR Aware Studio: https://appshunter.io/developer/1439301679

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-15.*