# Leonhard Euler vs ZeppGuide

The clearest difference is price: ZeppGuide at Free against Leonhard Euler's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

ZeppGuide is free to download; Leonhard Euler costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Leonhard Euler ships an update every 3 months, ZeppGuide every 2 months. The most recent releases landed on September 25, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | Leonhard Euler | ZeppGuide |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.2 (48 ratings)](https://appshunter.io/ios/app/zeppguide/id1597256388/reviews)** |
| Number of ratings | — | **48** |
| Positive reviews | — | 6.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 42 MB | 44 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad, Mac, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Zeppelin Museum Friedrichshafen GmbH](https://appshunter.io/developer/1597256390) |

## What reviewers say

### Leonhard Euler

[App page](https://appshunter.io/ios/app/leonhard-euler/id1451119959)

**Features:** Vision Pro support

**In-app purchases:** none


### ZeppGuide

[App page](https://appshunter.io/ios/app/zeppguide/id1597256388)

Explore captivating exhibits at the Zeppelin Museum with this official guide. Choose from various tours, including options in Simple Language and German Sign Language, and discover art, technology, and innovation. Save your favorite items and enjoy extra features like videos and mini-games.

**Highlights:** Curated audio tours, Simple Language tours, German Sign Language tours, Audio descriptions for visually impaired, QR code and number exhibit navigation, Favorites list, Videos and podcast episodes

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

**In-app purchases:** none


## Frequently asked questions

### Is Leonhard Euler free?

Leonhard Euler costs $1.99, with no in-app purchases.

### Is ZeppGuide free?

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

### Do Leonhard Euler or ZeppGuide have ads?

Neither Leonhard Euler nor ZeppGuide shows ads.

### Which is updated more often, Leonhard Euler or ZeppGuide?

Leonhard Euler ships an update every 3 months, and ZeppGuide every 2 months. Most recently, Leonhard Euler was updated on September 25, 2026 and ZeppGuide on August 21, 2026.

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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.*