CASSY App vs rClass
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.
rClass
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rClass macht Sitzordnung im Schulalltag schnell und flexibel: Klassen anlegen, Schüler per PDF importieren, Plätze manuell bearbeiten oder automatisch verteilen. Definiere mehrere Regeln wie Tabu-Paare, Wünsche, Muss-zusammensitzen und Frontplatz-Pflicht. Nutze Raum-Scan, Vorlagen, Druck und CAST-Modus fürs große Display. Schüler geben Wunschnachbarn per QR mit Login-Code ab; die Lehrkraft sieht Fortschritt und fehlende Abgaben live und kann jederzeit fortfahren. Inklusive Cloud-Sync, Offline-Modus und App-Schutz per Face ID/Touch ID/Code. Perfekt für iPad und iPhone im täglichen Unterricht. Für die Nutzung dieser App gelten die Standard-Nutzungsbedingungen von Apple (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: rClass at every 5 weeks against CASSY App's every 3 months. CASSY App's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support 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.
CASSY App ships an update every 3 months, rClass every 5 weeks. The most recent releases landed on October 17, 2026 and September 21, 2026 respectively.
| Parameter | CASSY App | rClass |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 74 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | LD DIDACTIC GmbH | TANO TRADING OOD LTD |
In-app purchases
CASSY App
No in-app purchases
rClass
No in-app purchases
