# Boeing 737 NG Diagrams vs Brain Test

The clearest difference is price: Brain Test at Free against Boeing 737 NG Diagrams's $19.99. Brain Test also leads on iOS requirement (10.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Brain Test is free to download; Boeing 737 NG Diagrams costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Boeing 737 NG Diagrams | Brain Test |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.9 (328 ratings)](https://appshunter.io/ios/app/boeing-737-ng-diagrams/id794795073/reviews)** | — |
| Number of ratings | **328** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 52 MB | 55 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aircraft Training Aids, LLC](https://appshunter.io/developer/692999325) | [Rina Katrina](https://appshunter.io/developer/1815864626) |

## What reviewers say

### Boeing 737 NG Diagrams

[App page](https://appshunter.io/ios/app/boeing-737-ng-diagrams/id794795073)

Explore and learn about the Boeing 737 NG aircraft systems with interactive diagrams. Manipulate systems, simulate emergencies, and review component descriptions for a comprehensive training experience.

**Highlights:** Interactive system manipulation, Emergency simulation, Cockpit poster with component descriptions, Electrical system diagrams, Fuel system diagrams, Hydraulic system diagrams

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

**In-app purchases:** none


### Brain Test

[App page](https://appshunter.io/ios/app/brain-test-visual-memory/id6446243158)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Boeing 737 NG Diagrams free?

Boeing 737 NG Diagrams costs $19.99, with no in-app purchases.

### Is Brain Test free?

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

### Do Boeing 737 NG Diagrams or Brain Test have ads?

Neither Boeing 737 NG Diagrams nor Brain Test 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.*