# Air Quality System (AQS) vs Aeiro

Air Quality System (AQS) and Aeiro are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Air Quality System (AQS) | Aeiro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 25 MB | 75 MB |
| Requires iOS | **14.0** | 14.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Prisma Electronics SA](https://appshunter.io/developer/418621487) | [Aeiro, LLC](https://appshunter.io/developer/1752866355) |

## What reviewers say

### Air Quality System (AQS)

[App page](https://appshunter.io/ios/app/air-quality-system-aqs/id6447432945)

**Features:** macOS Compatibility

**In-app purchases:** none


### Aeiro

[App page](https://appshunter.io/ios/app/aeiro/id6504563404)

**In-app purchases:** none


## Frequently asked questions

### Is Air Quality System (AQS) free?

Air Quality System (AQS) is free to download, with no in-app purchases.

### Is Aeiro free?

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

### Do Air Quality System (AQS) or Aeiro have ads?

Neither Air Quality System (AQS) nor Aeiro shows ads.

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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.*