# quantum error correction vs Quantum Validation

The clearest difference is iOS requirement: Quantum Validation at 13.4 against quantum error correction's 16.0. 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 | quantum error correction | Quantum Validation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Size | 5 MB | 35 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Apex Innovations](https://appshunter.io/developer/1669590580) |

## 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 Validation

[App page](https://appshunter.io/ios/app/quantum-validation/id6717616958)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is quantum error correction free?

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

### Is Quantum Validation free?

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

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

Neither quantum error correction nor Quantum Validation 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.*