# Boolean Builder by ChatStick vs Professor Quantum

The clearest difference is in-app purchases: Professor Quantum at none against Boolean Builder by ChatStick's 1. Professor Quantum also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.2). On price and device support there is nothing between them.

Both are free to download. Boolean Builder by ChatStick sells 1 one-off in-app purchase. Professor Quantum asks for nothing beyond the download.

## The numbers

| Metric | Boolean Builder by ChatStick | Professor Quantum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Size | 11 MB | 172 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) | [ICB LABS FZCO](https://appshunter.io/developer/6775509077) |

## What reviewers say

### Boolean Builder by ChatStick

[App page](https://appshunter.io/ios/app/boolean-builder-by-chatstick/id6764350982)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boolean Builder Premium | $1.99 | one-time |


### Professor Quantum

[App page](https://appshunter.io/ios/app/professor-quantum/id6793537346)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Boolean Builder by ChatStick free?

Boolean Builder by ChatStick is free to download, with in-app purchases available.

### Is Professor Quantum free?

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

### Do Boolean Builder by ChatStick or Professor Quantum have ads?

Boolean Builder by ChatStick shows ads; Professor Quantum does not.

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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.*