# entanglement entropy vs Quantum Bob

The clearest difference is iOS requirement: entanglement entropy at 18.0 against Quantum Bob's 26.2. 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 | entanglement entropy | Quantum Bob |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/quantum-bob/id6759178420/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | — | Free |
| Size | 5 MB | 13 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [SquatchCraft LLC](https://appshunter.io/developer/1440325922) |

## What reviewers say

### entanglement entropy

[App page](https://appshunter.io/ios/app/entanglement-entropy/id6737193148)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum Bob

[App page](https://appshunter.io/ios/app/quantum-bob/id6759178420)

Engage with real quantum physics experiments by predicting measurement outcomes from actual quantum computer data. Compete against an AI leveraging quantum entanglement and discover the quantum advantage through interactive gameplay and lessons.

**Highlights:** Real quantum measurement data, Compete against quantum AI, Local multiplayer, Interactive lessons, Progress tracking, Statistical proof tests

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is entanglement entropy free?

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

### Is Quantum Bob free?

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

### Do entanglement entropy or Quantum Bob have ads?

Neither entanglement entropy nor Quantum Bob 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.*