# PM2.5と黄砂の予測 大気汚染予報 vs へるさぽ

The clearest difference is review sentiment: へるさぽ at 100% against PM2.5と黄砂の予測 大気汚染予報's 48%. へるさぽ also leads on ads (none vs shown) and update cadence (weekly vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PM2.5と黄砂の予測 大気汚染予報 ships an update monthly, へるさぽ weekly. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PM2.5と黄砂の予測 大気汚染予報 | へるさぽ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 48.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 23 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Noriki Fujiwara](https://appshunter.io/developer/631049883) | [釧路市健康推進課](https://appshunter.io/developer/1469890149) |

## What reviewers say

### PM2.5と黄砂の予測 大気汚染予報

[App page](https://appshunter.io/ios/app/pm25/id631049880)

This app displays air quality forecasts for PM2.5 and yellow dust, presented in a weather forecast style by prefecture. It also provides real-time data from the Ministry of the Environment's "Soramame-kun" system. Visual indicators show air quality levels from clean to alert.

**Highlights:** PM2.5 and yellow dust forecasts, Prefecture-based weather forecast style, Real-time data from Soramame-kun, Visual air quality indicators, Clean to alert level display

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

**In-app purchases:** none


### へるさぽ

[App page](https://appshunter.io/ios/app/id1469890150)

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

**In-app purchases:** none


## Frequently asked questions

### Is PM2.5と黄砂の予測 大気汚染予報 free?

PM2.5と黄砂の予測 大気汚染予報 is free to download, with no in-app purchases.

### Is へるさぽ free?

へるさぽ is free to download, with no in-app purchases.

### Do PM2.5と黄砂の予測 大気汚染予報 or へるさぽ have ads?

PM2.5と黄砂の予測 大気汚染予報 shows ads; へるさぽ does not.

### Which is updated more often, PM2.5と黄砂の予測 大気汚染予報 or へるさぽ?

PM2.5と黄砂の予測 大気汚染予報 ships an update monthly, and へるさぽ weekly. Most recently, PM2.5と黄砂の予測 大気汚染予報 was updated on October 19, 2026 and へるさぽ on October 3, 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.*