# NeboAir vs O2Quality

The clearest difference is review sentiment: O2Quality at 100% against NeboAir's 43%. NeboAir's advantage is update cadence (every 6 weeks vs every 4 months) and iOS requirement (14.0 vs 27.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

NeboAir ships an update every 6 weeks, O2Quality every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | NeboAir | O2Quality |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/neboair/id1271451328/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 37 MB | 11 MB |
| Requires iOS | **14.0** | 27.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nebo Devices Limited](https://appshunter.io/developer/1645085563) | [Tomohiko Shimizu](https://appshunter.io/developer/436129129) |

## What reviewers say

### NeboAir

[App page](https://appshunter.io/ios/app/neboair/id1271451328)

This app allows users to contribute to a decentralized air quality monitoring network by installing a sensor in their home. It provides real-time air quality maps, historical data analysis, and local weather information to help users make informed decisions about their environment.

**Highlights:** Real-time air quality maps, Historical data analysis, Local weather information, Connect air quality monitors, Ad-free experience

**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 NeboAir free?

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

### Is O2Quality free?

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

### Do NeboAir or O2Quality have ads?

Neither NeboAir nor O2Quality shows ads.

### Which is updated more often, NeboAir or O2Quality?

NeboAir ships an update every 6 weeks, and O2Quality every 4 months. Most recently, NeboAir was updated on October 24, 2026 and O2Quality on October 24, 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.*