Privacy Policy

1. Controller

LuminaByte GmbH
Julius-Hatry-Straße 1, 68163 Mannheim, Germany
Email: support@luminabyte.de

2. Hosting and server logs

This website runs on our own infrastructure at Hetzner Online GmbH (Falkenstein data center, Germany). When you visit the site, our web server automatically processes technical access data (IP address, date and time, requested page, browser type) as far as necessary to deliver and secure the service. The legal basis is Art. 6(1)(f) GDPR (legitimate interest in secure and stable operation). Server logs are deleted after 7 days at the latest.

3. No cookies; analytics

This website sets no cookies and stores nothing on your device. For anonymous reach measurement we use PostHog (PostHog EU, processed on servers within the EU) in cookieless mode: no cookies and no persistent identifiers are stored on your device, and measurement data (pages viewed, coarse technical properties) cannot be linked into a profile across visits. The legal basis is Art. 6(1)(f) GDPR (legitimate interest in improving our offering). A consent banner is therefore not required.

4. Demo phone number

This website lists a demo phone number (+49 621 6374 1919). Calls to this number are answered by our AI telephone assistant, which explicitly discloses this at the start of the call. To provide the service, the conversation is transcribed in real time and processed by AI systems. The audio connection is not recorded; we store a call transcript (deleted after 21 days at the latest) and a summary (deleted after 365 days at the latest). Legal bases are Art. 6(1)(b) GDPR (pre-contractual measures at your request) and Art. 6(1)(f) GDPR (legitimate interest in demonstrating our service).

The following processors are involved in handling demo calls:

  • easybell GmbH, Berlin, Germany (telephony)
  • Hetzner Online GmbH, Germany (hosting)
  • Deepgram Inc., USA (speech recognition via EU endpoint; safeguarded by EU Standard Contractual Clauses)
  • ElevenLabs Inc., USA (speech synthesis; EU-US Data Privacy Framework certified)
  • Microsoft Ireland Operations Ltd. (Azure OpenAI, EU Data Zone; Azure Speech, Germany)
  • Mistral AI SAS, France (language-model failover)
  • seven.io (seven communications GmbH & Co. KG), Germany (SMS delivery)
  • Microsoft Azure Communication Services, EU (email delivery)

5. Contact by email

If you contact us by email, we process your details to handle the inquiry (Art. 6(1)(b) GDPR) or based on our legitimate interest in responding (Art. 6(1)(f) GDPR). The data is deleted once it is no longer required and no statutory retention obligations apply.

6. Transfers to third countries

Where service providers outside the EU/EEA are used (see section 4), transfers are based on adequacy decisions (EU-US Data Privacy Framework) or EU Standard Contractual Clauses (Art. 46(2)(c) GDPR). Where technically available, processing takes place on EU endpoints.

7. Your rights

You have the right to access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20) and to object to processing based on Art. 6(1)(f) GDPR (Art. 21). Contact support@luminabyte.de.

You also have the right to lodge a complaint with a data protection supervisory authority. Our competent authority is the State Commissioner for Data Protection and Freedom of Information of Baden-Württemberg (LfDI BW), Lautenschlagerstraße 20, 70173 Stuttgart, Germany.

8. Version and changes

Version: July 2026. We update this privacy policy when processing or the legal situation changes; the version published here applies.