# atmo vs 花粉 週間予報

The clearest difference is in-app purchases: atmo at none against 花粉 週間予報's 5. atmo also leads on ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. 花粉 週間予報 sells 5 in-app purchases, starting at $2.99 per month. atmo asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 10, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | atmo | 花粉 週間予報 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/atmo-atmospheric-pollution/id617655093/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 42.1% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 73 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [iClipReader project.](https://appshunter.io/developer/477002191) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### atmo

[App page](https://appshunter.io/ios/app/atmo-atmospheric-pollution/id617655093)

This app provides real-time atmospheric data, including PM 2.5, yellow dust, and pollen levels. Easily view conditions near you or registered stations, with a reminder function to stay informed.

**Highlights:** Real-time air quality data, PM 2.5, yellow dust, pollen tracking, Nearby measurement station display, Register favorite measurement stations, Daily reminder function

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

**In-app purchases:** none


### 花粉 週間予報

[App page](https://appshunter.io/ios/app/id6478220308)

Get real-time pollen forecasts across Japan to plan your outings with confidence. View daily pollen levels in easy-to-understand graphs and check the weekly forecast to prepare for high pollen days. Save your favorite locations for quick access to local pollen information.

**Highlights:** Nationwide pollen information, Daily pollen levels graph, Weekly pollen forecast, Register favorite locations, Real-time pollen data

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告停止 | $2.99 | per month |
| Coffee (Regular) | $0.49 | one-time |
| Coffee (Large) | $1.99 | one-time |
| システム改善応援募金 | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


## Frequently asked questions

### Is atmo free?

atmo is free to download, with no in-app purchases.

### Is 花粉 週間予報 free?

花粉 週間予報 is free to download, with in-app purchases available.

### Do atmo or 花粉 週間予報 have ads?

花粉 週間予報 shows ads; atmo does not.

### Which is updated more often, atmo or 花粉 週間予報?

atmo ships an update every 3 weeks, and 花粉 週間予報 every 3 weeks. Most recently, atmo was updated on October 10, 2026 and 花粉 週間予報 on October 27, 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.*