Privacy policy for the Kanal-Eigenüberwachung program
This English version is for information only. Only the German version is legally binding.
Recording and documentation of the self-monitoring of sewer systems. As at 2 November 2026.
The most important points first: Your entries and reports do not leave your computer. There is no telemetry, no usage statistics and no advertising. The program's only internet connections serve licence checks and update checks with the licence server of Geier-IT (keygen.gdyn.de).
1. Controller
The controller within the meaning of the General Data Protection Regulation (GDPR) is:
Geier-IT – Anton Geier, Untere Bergstraße 2, 55487 Sohren, Deutschland. Email: info@geier-it.eu. Telephone: +49 152 04202892.
You will find further information in the legal notice. There is no obligation to designate a data protection officer under Art. 37 GDPR.
2. Which data the program processes
2.1 Locally on your computer (no transmission)
- Construction projects, report and sewer section numbers, pipe and manhole data, measured values and remarks are held only in working memory while the program is running. The program does not create a separate file for this.
- The only thing stored permanently is the PDF report that you create yourself, at the location that you choose when saving.
- The proof of activation (licence key, company name, device ID, type of licence, activation and expiry date, time of the last check) is located in the Windows user profile under %LOCALAPPDATA%\KanalEigenueberwachung in the file activation.dat and is encrypted with the Windows Data Protection API (DPAPI).
Reports may contain personal data, such as names in remarks or the signatures of the foreman and the inspector on the printout. You, or your company, are solely responsible for this content. Geier-IT does not receive it.
2.2 Transmission to the licence server of Geier-IT
The program connects to https://keygen.gdyn.de (server location: Germany) only in the following cases:
| Process | Data transmitted | Purpose |
|---|---|---|
| One-time activation | Licence key, company name entered by you, device ID, program version | Unlocking the licence and binding it to your computer |
| Validity check at every program start and via “Check online” | Licence key, device ID, program version | Check whether the licence is still valid (not expired, blocked or reset). If the server cannot be reached, the program continues to work with the stored proof. |
| Update check at every program start | Installed program version | Notification of a newer version. A download takes place only after you have confirmed the prompt; the checksum of the file is verified before installation. |
The device ID is a truncated SHA-256 check value of the Windows installation identifier, not the identifier itself. If this identifier is missing, the check value is formed from the computer name.
The following is recorded on the licence server for each key: key, type of licence, status, issue, activation and expiry date, company name, device ID, most recently reported program version, time of the last check, and an internal note by Geier-IT for assignment to a customer.
With each of these connections, the server receives your IP address for technical reasons. It is not stored in the licence record. It may appear in the operating logs of the server for troubleshooting and misuse prevention; these logs are deleted automatically after 14 days at the latest.
2.3 What is not processed
- no contents of your reports, no measured values and no construction projects
- no names of files or projects
- no usage statistics, no usage behaviour, no crash reports
- no disclosure to third parties and no transfer to third countries. The licence server runs in Germany on our own servers.
3. Legal bases
- Art. 6(1)(b) GDPR (performance of a contract): Activation and validity checks are necessary for providing the licensed software.
- Art. 6(1)(f) GDPR (legitimate interest): Protection of the licence against abusive multiple use and the provision of security and feature updates.
4. Storage period
- Licence data is stored for the duration of the licence relationship and beyond that within the scope of statutory retention obligations.
- The operating logs of the licence server are deleted automatically after 14 days at the latest.
- You can delete the proof of activation on your computer yourself at any time by removing the folder %LOCALAPPDATA%\KanalEigenueberwachung. After that, the program asks for the licence key again at the next start.
- You manage PDF reports yourself.
5. Your rights
Under the GDPR, you have the following rights:
- Access to the data stored about you (Art. 15),
- rectification of inaccurate data (Art. 16),
- erasure (Art. 17) and restriction of processing (Art. 18),
- data portability (Art. 20),
- objection to processing based on Art. 6(1)(f) (Art. 21),
- lodging a complaint with a data protection supervisory authority (Art. 77). The authority responsible for us is the Landesbeauftragte für den Datenschutz und die Informationsfreiheit Rheinland-Pfalz (State Commissioner for Data Protection and Freedom of Information of Rhineland-Palatinate; www.datenschutz.rlp.de).
To do so, please contact us using the contact details stated under section 1.
6. Obligation to provide data
Providing the licence key and company name on activation is required for using the program; without them, the licence cannot be unlocked. All other functions of the program work without any data transmission.
7. Changes to this policy
This privacy policy is amended when the program or the legal position changes. The current version in each case can be found on this page.