# かわいい天気予報 vs O2Quality

The clearest difference is update cadence: かわいい天気予報 at monthly against O2Quality's every 5 months. かわいい天気予報 also leads on iOS requirement (6.0 vs 27.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

かわいい天気予報 ships an update monthly, O2Quality every 5 months. The most recent releases landed on September 13, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | かわいい天気予報 | O2Quality |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | — | Free |
| Size | 25 MB | 11 MB |
| Requires iOS | **6.0** | 27.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Aine LLC.](https://appshunter.io/developer/948262793) | [Tomohiko Shimizu](https://appshunter.io/developer/436129129) |

## What reviewers say

### かわいい天気予報

[App page](https://appshunter.io/ios/app/id1108027573)

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

**In-app purchases:** none


### O2Quality

[App page](https://appshunter.io/ios/app/o2quality/id1570058656)

Provides real-time air quality information based on US and European Air Quality Index (AQI) standards. It forecasts pollutant levels for up to five days, including carbon monoxide, ozone, nitrogen dioxide, sulfur dioxide, PM2.5, and PM10.

**Highlights:** Real-time AQI reporting, US and European AQI standards, Forecasts for 6 pollutants, 5-day pollutant forecasts, Color-coded risk levels, Pollutant concentration data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is かわいい天気予報 free?

かわいい天気予報 is free to download, with no in-app purchases.

### Is O2Quality free?

O2Quality is free to download, with no in-app purchases.

### Do かわいい天気予報 or O2Quality have ads?

Neither かわいい天気予報 nor O2Quality shows ads.

### Which is updated more often, かわいい天気予報 or O2Quality?

かわいい天気予報 ships an update monthly, and O2Quality every 5 months. Most recently, かわいい天気予報 was updated on September 13, 2026 and O2Quality on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*