# quantum error correction 2 vs Did You Know..

The clearest difference is in-app purchases: quantum error correction 2 at none against Did You Know..'s 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Did You Know.. sells 1 one-off in-app purchase. quantum error correction 2 asks for nothing beyond the download.

## The numbers

| Metric | quantum error correction 2 | Did You Know.. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/did-you-know/id6761013561/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 4 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [柏生 杨](https://appshunter.io/developer/1887198371) |

## What reviewers say

### quantum error correction 2

[App page](https://appshunter.io/ios/app/quantum-error-correction-2/id6505033728)

**Features:** macOS Compatibility

**In-app purchases:** none


### Did You Know..

[App page](https://appshunter.io/ios/app/did-you-know/id6761013561)

Discover fascinating facts across various subjects in a quick and engaging format. This app delivers bite-sized insights without lengthy reading or pressure, making learning accessible and memorable.

**Highlights:** Short, impactful facts, Bite-sized learning, Covers science, psychology, history, Engaging swipe interface, No long reading required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited Facts | $3.99 | one-time |


## Frequently asked questions

### Is quantum error correction 2 free?

quantum error correction 2 is free to download, with no in-app purchases.

### Is Did You Know.. free?

Did You Know.. is free to download, with in-app purchases available.

### Do quantum error correction 2 or Did You Know.. have ads?

Neither quantum error correction 2 nor Did You Know.. shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*