# CASSY App vs Buchenwald

The clearest difference is review sentiment: CASSY App at 60% against Buchenwald's 50%. Buchenwald's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CASSY App | Buchenwald |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/buchenwald/id1276212031/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 76 MB | 16 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LD DIDACTIC GmbH](https://appshunter.io/developer/1083056850) | [Stiftung Gedenkstätten Buchenwald und Mittelbau-Dora](https://appshunter.io/developer/591973904) |

## What reviewers say

### CASSY App

[App page](https://appshunter.io/ios/app/cassy-app/id1083056851)

Control scientific measurement devices and display data on your mobile device. Analyze, store, and share results without a PC. Supports a wide range of physics, chemistry, and biology sensors.

**Highlights:** Control CASSY devices, Display measurements (analog/digital, tables, diagrams), Evaluate and store data, Share results wirelessly, Support for physics, chemistry, and biology sensors, WebDAV server integration

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

**In-app purchases:** none


### Buchenwald

[App page](https://appshunter.io/ios/app/buchenwald/id1276212031)

Explore the history of the Buchenwald concentration camp with this official app. It offers guided tours of the former camp grounds and the permanent exhibition, featuring historical sites, photographs, and personal accounts from former inmates. Use it as an interactive guide on-site or as a comprehensive source of information.

**Highlights:** Camp grounds tour, Permanent exhibition tour, 27 historically significant sites, Photographs from archive, Former inmate testimonies, Interactive tour guide, GPS function

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

**In-app purchases:** none


## Frequently asked questions

### Is CASSY App free?

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

### Is Buchenwald free?

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

### Do CASSY App or Buchenwald have ads?

Neither CASSY App nor Buchenwald shows ads.

### Which is updated more often, CASSY App or Buchenwald?

CASSY App ships an update every 3 months, and Buchenwald every 3 months. Most recently, CASSY App was updated on October 24, 2026 and Buchenwald on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*