# science AI Quiz vs LangBook

The clearest difference is in-app purchases: science AI Quiz at none against LangBook's 2. LangBook's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. LangBook sells 2 in-app purchases, starting at $4.99 per month. science AI Quiz asks for nothing beyond the download.

## The numbers

| Metric | science AI Quiz | LangBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/science-ai-quiz/id6746064702/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Weekly |
| Monetization | Ad-supported | — |
| Size | 3 MB | 21 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [takeshi ogawa](https://appshunter.io/developer/1676749157) | [KOSUKE NAKASONO](https://appshunter.io/developer/1887053344) |

## What reviewers say

### science AI Quiz

[App page](https://appshunter.io/ios/app/science-ai-quiz/id6746064702)

Test your science knowledge with AI-generated multiple-choice questions and explanations. Daily updates ensure a growing collection to deepen your understanding of scientific concepts. Explore the wonders of science and expand your learning.

**Highlights:** AI-generated multiple-choice questions, Daily AI-generated explanations, Growing collection of science topics, Build broad scientific understanding, Enrich science knowledge

**Features:** macOS Compatibility

**In-app purchases:** none


### LangBook

[App page](https://appshunter.io/ios/app/langbook/id6761845179)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $4.99 | per month |
| Plus | $11.99 | per month |


## Frequently asked questions

### Is science AI Quiz free?

science AI Quiz is free to download, with no in-app purchases.

### Is LangBook free?

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

### Do science AI Quiz or LangBook have ads?

science AI Quiz shows ads; LangBook does not.

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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.*