# 紫外線予報 UV vs 地震マップ30

The clearest difference is in-app purchases: 地震マップ30 at none against 紫外線予報 UV's 4. 地震マップ30 also leads on update cadence (weekly vs every 6 weeks). 紫外線予報 UV's advantage is iOS requirement (15.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. 紫外線予報 UV sells 4 one-off in-app purchases. 地震マップ30 asks for nothing beyond the download.

紫外線予報 UV ships an update every 6 weeks, 地震マップ30 weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | 紫外線予報 UV | 地震マップ30 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uv/id1529084441/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 10 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [KAZUYUKI TAJIMA](https://appshunter.io/developer/876885221) |

## What reviewers say

### 紫外線予報 UV

[App page](https://appshunter.io/ios/app/uv/id1529084441)

This app provides hourly UV index forecasts and analysis maps, making it easy to check UV radiation levels. It offers current location UV information, daily UV data, and quick access to national weather conditions.

**Highlights:** Hourly UV index forecasts, Analysis maps, Current location UV info, Daily UV data, National weather conditions

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

**In-app purchases (4)**

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


### 地震マップ30

[App page](https://appshunter.io/ios/app/30/id6799633870)

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

**In-app purchases:** none


## Frequently asked questions

### Is 紫外線予報 UV free?

紫外線予報 UV is free to download, with in-app purchases available.

### Is 地震マップ30 free?

地震マップ30 is free to download, with no in-app purchases.

### Do 紫外線予報 UV or 地震マップ30 have ads?

Both 紫外線予報 UV and 地震マップ30 show ads.

### Which is updated more often, 紫外線予報 UV or 地震マップ30?

紫外線予報 UV ships an update every 6 weeks, and 地震マップ30 weekly. Most recently, 紫外線予報 UV was updated on October 24, 2026 and 地震マップ30 on October 24, 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.*