# Knowledge Quiz KH vs Merge Numbers ：2+2=4

The clearest difference is in-app purchases: Knowledge Quiz KH at none against Merge Numbers ：2+2=4's 5. Merge Numbers ：2+2=4's advantage is iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Merge Numbers ：2+2=4 sells 5 one-off in-app purchases. Knowledge Quiz KH asks for nothing beyond the download.

## The numbers

| Metric | Knowledge Quiz KH | Merge Numbers ：2+2=4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (17 ratings)](https://appshunter.io/ios/app/knowledge-quiz-kh/id1570748306/reviews)** | — |
| Number of ratings | **17** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Monetization | Ad-supported | — |
| Size | 20 MB | 67 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phearoth Phen](https://appshunter.io/developer/925021535) | [玲 郭](https://appshunter.io/developer/1655997746) |

## What reviewers say

### Knowledge Quiz KH

[App page](https://appshunter.io/ios/app/knowledge-quiz-kh/id1570748306)

Test your general knowledge with this fun multiple-choice quiz game. Compete with players worldwide, learn new facts across various categories, and aim for high scores. It offers hints and lives to help you progress.

**Highlights:** Thousands of multiple choice questions, Multiple categories (History, Science, Sports, etc.), High scores and online leaderboards, Hints and lives system, Fast-paced answering for bonus points, Beautiful graphics

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

**In-app purchases:** none


### Merge Numbers ：2+2=4

[App page](https://appshunter.io/ios/app/merge-numbers-2-plus-24/id6444729368)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 240COINS | $0.99 | one-time |
| REMOVE ADS | $1.99 | one-time |
| 800COINS&REMOVE ADS | $2.99 | one-time |
| 1400COINS&REMOVE ADS | $4.99 | one-time |
| 3000COINS&REMOVE ADS | $9.99 | one-time |


## Frequently asked questions

### Is Knowledge Quiz KH free?

Knowledge Quiz KH is free to download, with no in-app purchases.

### Is Merge Numbers ：2+2=4 free?

Merge Numbers ：2+2=4 is free to download, with in-app purchases available.

### Do Knowledge Quiz KH or Merge Numbers ：2+2=4 have ads?

Both Knowledge Quiz KH and Merge Numbers ：2+2=4 show 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.*