# CSIT vs quantum error correction

The clearest difference is iOS requirement: CSIT at 11.0 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 | CSIT | quantum error correction |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 25 MB | 5 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MTA SZTAKI](https://appshunter.io/developer/381282454) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### CSIT

[App page](https://appshunter.io/ios/app/csit/id959873557)

**Features:** macOS Compatibility

**In-app purchases:** none


### quantum error correction

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CSIT free?

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

### Is quantum error correction free?

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

### Do CSIT or quantum error correction have ads?

Neither CSIT nor quantum error correction 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.*