# ISPUNet vs Air Quality

The clearest difference is in-app purchases: ISPUNet at none against Air Quality's 3. ISPUNet also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Air Quality's advantage is update cadence (fortnightly vs every 9 months). On price and ads there is nothing between them.

Both are free to download. Air Quality sells 3 in-app purchases, starting at $3.99 per 7 days. ISPUNet asks for nothing beyond the download.

ISPUNet ships an update every 9 months, Air Quality fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ISPUNet | Air Quality |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/air-quality-aqi-tracker/id6771326141/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 81 MB | 13 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [PT. DASENDRIA DIGITAL MEDIA](https://appshunter.io/developer/1721504121) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### ISPUNet

[App page](https://appshunter.io/ios/app/ispunet/id6474420941)

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

**In-app purchases:** none


### Air Quality

[App page](https://appshunter.io/ios/app/air-quality-aqi-tracker/id6771326141)

Monitor real-time air quality with a color-coded gauge and detailed pollutant analysis. Plan outdoor activities with a 7-day forecast and receive automatic location-based alerts. Enjoy a private, ad-free experience with offline support.

**Highlights:** Real-time AQI gauge, Pollutant analysis (PM2.5, PM10, NO₂, O₃, CO), 7-day forecast, Automatic location detection, Offline support, Ad-free and private

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $19.99 | per year |
| Lifetime Pro | $39.99 | one-time |


## Frequently asked questions

### Is ISPUNet free?

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

### Is Air Quality free?

Air Quality is free to download, with in-app purchases available.

### Do ISPUNet or Air Quality have ads?

Neither ISPUNet nor Air Quality shows ads.

### Which is updated more often, ISPUNet or Air Quality?

ISPUNet ships an update every 9 months, and Air Quality fortnightly. Most recently, ISPUNet was updated on October 25, 2026 and Air Quality 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.*