# quantum error correction vs Quantum Computing

The clearest difference is in-app purchases: quantum error correction at none against Quantum Computing's 1. Quantum Computing's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Quantum Computing sells 1 one-off in-app purchase. quantum error correction asks for nothing beyond the download.

## The numbers

| Metric | quantum error correction | Quantum Computing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 5 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Everyware Apps](https://appshunter.io/developer/718530491) |

## What reviewers say

### quantum error correction

[App page](https://appshunter.io/ios/app/quantum-error-correction/id6504707563)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is quantum error correction free?

quantum error correction is free to download, with no in-app purchases.

### Is Quantum Computing free?

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

### Do quantum error correction or Quantum Computing have ads?

Neither quantum error correction nor Quantum Computing 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.*