# Quantum Computing vs Monium

The clearest difference is price: Quantum Computing at Free against Monium's $3.99. Quantum Computing also leads on device support (4 vs 2). Monium's advantage is in-app purchases (none vs 1) and iOS requirement (15.1 vs 17.0). On ads there is nothing between them.

Quantum Computing is free to download; Monium costs $3.99 up front. Quantum Computing sells 1 one-off in-app purchase. Monium asks for nothing beyond the download.

## The numbers

| Metric | Quantum Computing | Monium |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/monium/id6774312164/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Daily | — |
| Monetization | — | Paid |
| Size | 2 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Everyware Apps](https://appshunter.io/developer/718530491) | [Jens Koch](https://appshunter.io/developer/6774312166) |

## What reviewers say

### Quantum Computing

[App page](https://appshunter.io/ios/app/quantum-computing/id6523414226)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features | $3.99 | one-time |


### Monium

[App page](https://appshunter.io/ios/app/monium/id6774312164)

Explore superconducting qubit physics with interactive simulations. Tune parameters, visualize energy spectra, wavefunctions, and coherence times in real-time. Supports Transmon, Tunable Transmon, and Fluxonium qubits.

**Highlights:** Interactive qubit parameter tuning, Real-time energy spectrum visualization, Wavefunction and potential plotting, Coherence time calculations, Matrix element heatmaps, Save and reload qubit presets

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Computing free?

Quantum Computing is free to download, with in-app purchases available.

### Is Monium free?

Monium costs $3.99, with no in-app purchases.

### Do Quantum Computing or Monium have ads?

Neither Quantum Computing nor Monium 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.*