CASSY App vs Buchenwald
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CASSY App
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.
- 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
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With the CASSY App, students and teachers can measure, observe and analyse using CASSY – on an iPad or iPhone. It’s simple and practical for everyday use: just type in the PIN from the CASSY display or scan the QR code and start measuring straight away. - Free experimentation without fixed experimental parameters - Group measurements: connect up to 4 devices to a single CASSY simultaneously - Live measurement results on an external display in digital and analogue displays, tables and diagrams - Free configuration of measurements - Comparison of multiple measurements - Individual evaluation per student - Save results and load measured values for analysis - Exam mode for exam security (configurable via CASSY teaching profiles on our LeyLab online portal) - Can be used without internet access The CASSY App supports all CASSY sensors and the following CASSY devices: - Mobile-CASSY 2 WiFi (524 005W2, 524 005W) - Power Analyser CASSY (727 101, 727 111) - Machine Test CASSY (773 1901, 773 2901) - Converter Controller CASSY (773 5291) - Power Control CASSY (773 530) You can obtain a compatible CASSY and the sensors from LD DIDACTIC GmbH. Further information can be found on our website.
Buchenwald
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.
- Camp grounds tour
- Permanent exhibition tour
- 27 historically significant sites
- Photographs from archive
- Former inmate testimonies
- Interactive tour guide
- GPS function
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The official Buchenwald Memorial app In 1937, the Nazis had the Buchenwald concentration camp built on Ettersberg Mountain, just outside the city of Weimar. By the end of the war, the SS had held more than a quarter of a million persons from nearly all countries of Europe in custody here and in the many Buchenwald subcamps. Beginning in August 1945, the Soviet occupying power used parts of the former concentration camp as one of its special camps. After the dissolution of the special camp in early 1950, the German Democratic Republic established a national monument on the Ettersberg. Today the name "Buchenwald" stands like almost no other for the complexities of twentieth-century German and European history. The app offers a tour of the former camp grounds and a tour of the permanent exhibition on the history of the Buchenwald concentration camp. In both cases, you can design the tour according to your individual preferences. On the camp grounds, the app provides basic information on 27 historically significant sites, supplemented with photographs from the memorial's extensive photo archive. In addition, former inmates talk about their experiences. The tour of the permanent exhibition "Buchenwald: Ostracism and Violence 1937 to 1945" features the main exhibition texts and provides explanations of selected objects. Biographies shed light on the fates of the inmates. The app can be used both as an interactive tour guide at the memorial and as a general source of information on the history of the place. The app was developed by the Buchenwald Memorial in cooperation with itour city guide GmbH. For further information, see www.buchenwald.de and www.itour.de. Contents: • Tour of the camp grounds with stops at altogether 27 sites • Tour of the permanent exhibition • High-quality production with professional narrators • Convenient navigation map • Scrollable menu list offering direct selection of all sites • GPS function in outdoor area
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | CASSY App | Buchenwald |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews — better | 50.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 76 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | LD DIDACTIC GmbH | Stiftung Gedenkstätten Buchenwald und Mittelbau-Dora |
Customer experience
CASSY App
Buchenwald
In-app purchases
CASSY App
No in-app purchases
Buchenwald
No in-app purchases








