# Constructor Proctor vs AMSBB Niner

The clearest difference is iOS requirement: AMSBB Niner at 12.0 against Constructor Proctor's 15.6. 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 | Constructor Proctor | AMSBB Niner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 16 MB | 23 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SIT Alemira Switzerland AG](https://appshunter.io/developer/1650092810) | [Brian Martin Sioson](https://appshunter.io/developer/1530693910) |

## What reviewers say

### Constructor Proctor

[App page](https://appshunter.io/ios/app/constructor-proctor/id6443860334)

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

**In-app purchases:** none


### AMSBB Niner

[App page](https://appshunter.io/ios/app/amsbb-niner/id6479942324)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Constructor Proctor free?

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

### Is AMSBB Niner free?

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

### Do Constructor Proctor or AMSBB Niner have ads?

Neither Constructor Proctor nor AMSBB Niner 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.*