# Air Quality Egg vs Brain

The clearest difference is iOS requirement: Air Quality Egg at 9.0 against Brain's 15.0. 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.

## The numbers

| Metric | Air Quality Egg | Brain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/air-quality-egg/id1242985337/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 14 MB | 4 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wicked Device LLC](https://appshunter.io/developer/1242985336) | [vWave eCommerce GmbH](https://appshunter.io/developer/1714101394) |

## What reviewers say

### Air Quality Egg

[App page](https://appshunter.io/ios/app/air-quality-egg/id1242985337)

Monitor real-time air quality readings from your device, compare data globally, and analyze pollution trends. This open-source tool is ideal for educators and individuals interested in environmental data.

**Highlights:** Real-time air quality readings, Global data comparison, Pollution data tracking, Data analysis labs, Favorite other sensors, Email data for analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain

[App page](https://appshunter.io/ios/app/brain-friendly-language-learn/id6470720876)

**In-app purchases:** none


## Frequently asked questions

### Is Air Quality Egg free?

Air Quality Egg is free to download, with no in-app purchases.

### Is Brain free?

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

### Do Air Quality Egg or Brain have ads?

Neither Air Quality Egg nor Brain 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.*