# LEIFIphysik vs clearn

The clearest difference is in-app purchases: LEIFIphysik at none against clearn's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. clearn sells 3 in-app purchases, starting at $3.99 per month. LEIFIphysik asks for nothing beyond the download.

## The numbers

| Metric | LEIFIphysik | clearn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 45 MB | 42 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FWU Institut für Film und Bild in Wissenschaft und Unterricht gemeinnützige GmbH](https://appshunter.io/developer/1027361636) | [Andreas Ostheimer](https://appshunter.io/developer/1027787401) |

## What reviewers say

### LEIFIphysik

[App page](https://appshunter.io/ios/app/leifiphysik/id6466470177)

This app serves as a physics learning assistant for students from 5th grade through high school. It provides comprehensive content, exercises, and simulations aligned with school curricula, helping with homework, presentations, and exams. Users can track their progress and create personalized collections of topics.

**Highlights:** Physics content for grades 5-12, Homework and exam preparation, Interactive simulations, Knowledge quizzes, Personalized topic collections, Progress tracking, Curriculum-aligned learning

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

**In-app purchases:** none


### clearn

[App page](https://appshunter.io/ios/app/clearn/id6766691399)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| clearn Pro Monthly | $3.99 | per month |
| clearn Pro Annual | $34.99 | per year |
| clearn Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is LEIFIphysik free?

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

### Is clearn free?

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

### Do LEIFIphysik or clearn have ads?

Neither LEIFIphysik nor clearn 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.*