Privacy Policy

Last updated: February 2026

1. Controller

Marvin Kühlmann
Warendorfer Str. 63
48145 Münster, Germany
Email: hello@heyjulia.de

2. Overview

This privacy policy explains how we collect, use, and protect your personal data when you use Julia, our AI office assistant accessible via WhatsApp.

3. Data We Collect

• Account data: Business name, owner name, address, email, phone number, tax ID, bank details (IBAN/BIC)
• Document data: Quotes, invoices, customer information, line items, prices
• Communication data: WhatsApp messages (text and voice), message metadata
• Usage data: Feature usage, session data, error logs

4. How We Use Your Data

• Creating and sending quotes and invoices on your behalf
• Processing voice messages to extract document data
• Sending emails to your customers with attached PDFs
• Synchronizing data with connected services (e.g., LexOffice)
• Improving our service and fixing bugs

5. Third-Party Services

• Anthropic (Claude API): AI processing of messages — EU data processing
• Meta (WhatsApp Business API): Message delivery
• Railway: Hosting infrastructure — EU servers
• Postmark: Email delivery on your behalf

6. Data Storage & Security

All data is stored on encrypted servers within the European Union. We use PostgreSQL for structured data and Redis for session management. Data is transmitted exclusively via TLS-encrypted connections.

7. Your Rights (GDPR)

Under the General Data Protection Regulation (GDPR), you have the right to:

• Access your personal data (Art. 15 GDPR)
• Rectification of inaccurate data (Art. 16 GDPR)
• Erasure of your data (Art. 17 GDPR)
• Restriction of processing (Art. 18 GDPR)
• Data portability (Art. 20 GDPR)
• Object to processing (Art. 21 GDPR)

To exercise these rights, contact us at hello@heyjulia.de.

8. Data Retention

We retain your data for as long as your account is active. After account deletion, data is removed within 30 days, unless legal retention periods apply (e.g., invoices must be retained for 10 years under German tax law).

9. Contact

For privacy-related questions, contact us at:
Email: hello@heyjulia.de