# Quantum Cats Dance vs RealXV6

The clearest difference is update cadence: Quantum Cats Dance at daily against RealXV6's every 4 months. 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.

Quantum Cats Dance ships an update daily, RealXV6 every 4 months. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Quantum Cats Dance | RealXV6 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/realxv6/id6757357040/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 4 months |
| Monetization | — | Free |
| Size | 4 MB | 15 MB |
| Requires iOS | 18.2 | **17.2** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Eiki Sato](https://appshunter.io/developer/1018719847) | [Zheng Fang](https://appshunter.io/developer/1258046278) |

## What reviewers say

### Quantum Cats Dance

[App page](https://appshunter.io/ios/app/quantum-cats-dance/id6757285319)

**Features:** macOS Compatibility

**In-app purchases:** none


### RealXV6

[App page](https://appshunter.io/ios/app/realxv6/id6757357040)

Explore the legendary Lions' Commentary on UNIX 6th Edition by bringing its source code to life. This app provides an interactive virtual machine to dynamically experience OS kernel operations, offering source-level debugging and precise execution control for a deeper understanding.

**Highlights:** Interactive virtual machine for OS study, Source-level debugging, Precise execution control (step in, over, out), Trace context switching and interrupts, Simplified 8086 architecture, Portable OS laboratory

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Cats Dance free?

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

### Is RealXV6 free?

RealXV6 is free to download, with no in-app purchases.

### Do Quantum Cats Dance or RealXV6 have ads?

Neither Quantum Cats Dance nor RealXV6 shows ads.

### Which is updated more often, Quantum Cats Dance or RealXV6?

Quantum Cats Dance ships an update daily, and RealXV6 every 4 months. Most recently, Quantum Cats Dance was updated on October 28, 2026 and RealXV6 on October 12, 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.*