# PM2.5台灣 vs Taiwan MiniAQI

The clearest difference is update cadence: Taiwan MiniAQI at daily against PM2.5台灣's every 2 weeks. PM2.5台灣's advantage is iOS requirement (7.0 vs 17.6). On price, ads, 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台灣 ships an update every 2 weeks, Taiwan MiniAQI daily. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PM2.5台灣 | Taiwan MiniAQI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YEH TSUNG MING](https://appshunter.io/developer/324655388) | [Yi-Jhong Gong](https://appshunter.io/developer/1813699784) |

## What reviewers say

### PM2.5台灣

[App page](https://appshunter.io/ios/app/pm25/id990281102)

Stay informed about PM2.5 air quality in Taiwan. Receive custom notifications for high pollution levels and track real-time rankings across different regions.

**Highlights:** Real-time PM2.5 concentration tracking, Customizable pollution level notifications, Nationwide and regional rankings, Alerts for exceeding pollution thresholds, Daily time-based reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### Taiwan MiniAQI

[App page](https://appshunter.io/ios/app/taiwan-miniaqi/id6745752733)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PM2.5台灣 free?

PM2.5台灣 is free to download, with no in-app purchases.

### Is Taiwan MiniAQI free?

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

### Do PM2.5台灣 or Taiwan MiniAQI have ads?

Neither PM2.5台灣 nor Taiwan MiniAQI shows ads.

### Which is updated more often, PM2.5台灣 or Taiwan MiniAQI?

PM2.5台灣 ships an update every 2 weeks, and Taiwan MiniAQI daily. Most recently, PM2.5台灣 was updated on October 20, 2026 and Taiwan MiniAQI on October 28, 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.*