# Little Quantum App vs Quantum Bob

The clearest difference is update cadence: Quantum Bob at every 2 days against Little Quantum App's every 2 weeks. Little Quantum App's advantage is iOS requirement (15.0 vs 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.

Little Quantum App ships an update every 2 weeks, Quantum Bob every 2 days. The most recent releases landed on September 12, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Little Quantum App | Quantum Bob |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/quantum-bob/id6759178420/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 169 MB | 13 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ludwig-Maximilians-Universitaet Muenchen](https://appshunter.io/developer/1634377997) | [SquatchCraft LLC](https://appshunter.io/developer/1440325922) |

## What reviewers say

### Little Quantum App

[App page](https://appshunter.io/ios/app/little-quantum-app/id6752292817)

**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 Little Quantum App free?

Little Quantum App 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 Little Quantum App or Quantum Bob have ads?

Neither Little Quantum App nor Quantum Bob shows ads.

### Which is updated more often, Little Quantum App or Quantum Bob?

Little Quantum App ships an update every 2 weeks, and Quantum Bob every 2 days. Most recently, Little Quantum App was updated on September 12, 2026 and Quantum Bob on June 1, 2026.

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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.*