CASSY App vs Relution Parent
Price, ratings, monetisation and update history for both apps, side by side β 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
Read full descriptionHide full description
With the CASSY App, students and teachers can measure, observe and analyse using CASSY β on an iPad or iPhone. Itβs 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.
Relution Parent
This app allows parents to manage their children's device usage, controlling which applications are accessible outside of school hours. It facilitates remote app selection and blocking, enhancing child protection in the digital world.
- Remote app management
- App blocking and unblocking
- Comprehensive device overview
- Flexible control options
- Data sovereignty and protection
- Manage multiple children
- Cross-school compatibility
Read full descriptionHide full description
The Relution Parent App extends the scope of Relution's Mobile Device Management (MDM) system with a user-friendly solution for parents and to increase the protection of children in the digital age. The app enables you to manage the use of children's devices outside of school hours by allowing you to remotely select which apps your children are allowed to use. By connecting the Relution Parent App (on your end device) and the Relution Agent App (on the child's device), you can easily control apps and allow or block them. Advantages: - Comprehensive overview: Decide remotely which apps your child is allowed to use on their device. - Easy to use: Easily restrict the use of game apps to ensure your child is safe online and not distracted. - Flexibility: Once an app has been blocked, it can be unblocked at any time. - Data sovereignty: The parents' private device is not managed by Relution; there is no external access. - Data protection: double-secured release process. - No restriction to parents: Several parents can also control a student device, as one device can be managed by up to 5 parent apps. - Unlimited management options: Any number of "children" can be managed and added in the parent app. - Cross-school use: The children's devices do not have to be registered in the same school and on the same Relution server. General conditions: - Reliable internet connection: All devices should have unrestricted access to a stable internet connection, whether mobile or via WiFi. - Management of the student device with Relution: The child's device must be managed by the school using Relution's Mobile Device Management. - Prepared student devices: The children's devices have already been approved by the administrators of the respective school for device pairing with parent devices. This is how it works: Student device - Agent app: - Scan QR code: in the Agent App of the student device, you will find the menu item "Parent App" under the navigation "Device information", where you will find the QR code required for the connection. Important: If you have any problems, please contact the respective school administrator. The Relution team cannot help you with this. Parent device - Parent App: - Add device: Name your device in the app. Here you have the option to enter a free text for the school administrator. - Send information: The information you enter will be sent to the school administrator. The "Invited" status is displayed in your Relution Parent app. - Confirm link: Immediately after submitting your device information, you will receive an automated email from Relution. Click on the link in the email to confirm your email address. This will change the status in your Relution Parent App to "Email confirmed". - Approval of the request: The request for your activation will be sent to the school's device administrator for review and confirmation. - Linking the apps: After approval, the parent app changes to "Established". The apps are successfully linked and you have access to all apps installed on the student device. From this point on, apps can be blocked and allowed again. - App control: With the Relution Parent app, you now have full control over the apps on the student device. You can select an app and the options "Unblock" or "Block" will appear. This allows you to block or allow the apps on the student device.
Screenshots
Verdict
The clearest difference is review sentiment: CASSY App at 60% against Relution Parent's 0%. CASSY App also leads on update cadence (every 3 months vs every 10 months). Relution Parent's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· 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, Relution Parent every 10 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | CASSY App | Relution Parent |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 60.0% of reviews β better | 0.0% of reviews |
| Update frequency | Every 3 months β better | Every 10 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 β better |
| Further details β not scored | ||
| Size | 76 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | LD DIDACTIC GmbH | Relution GmbH |
Customer experience
CASSY App
Relution Parent
In-app purchases
CASSY App
No in-app purchases
Relution Parent
No in-app purchases








