# MPF E vs Four Walls

MPF E and Four Walls are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | MPF E | Four Walls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/mpf-e-magazin/id626691473/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 161 MB | 116 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Max-Planck-Gesellschaft](https://appshunter.io/developer/506613849) | [Museum der Bildenden Kuenste](https://appshunter.io/developer/1716049921) |

## What reviewers say

### MPF E

[App page](https://appshunter.io/ios/app/mpf-e-magazin/id626691473)

Access scientific research and discoveries from the Max Planck Society in an easy-to-understand e-magazine format. Explore in-depth articles, current reports, and thematic focuses across various scientific disciplines. Available for free on your iPad.

**Highlights:** Free e-magazine access, In-depth scientific articles, Thematic focuses, Short reports, Multiple scientific disciplines, iPad compatibility

**Features:** Vision Pro support

**In-app purchases:** none


### Four Walls

[App page](https://appshunter.io/ios/app/four-walls-audio-guide/id6815666409)

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

**In-app purchases:** none


## Frequently asked questions

### Is MPF E free?

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

### Is Four Walls free?

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

### Do MPF E or Four Walls have ads?

Neither MPF E nor Four Walls 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.*