Privacy Policy
May 16, 2026 • Version 1.1
Introduction
- Serenzer is committed to protecting your privacy and personal data.
- This policy explains what data we collect, how we use it, and what your rights are.
- By using Serenzer, you agree to the practices described in this policy.
Data Collected
- We collect the following information:
- Authentication data (email, username, encrypted password)
- Personal development profile (12 life dimensions)
- Conversations with the AI to enhance coaching
- Technical data (IP address, browser, device)
- OAuth connection data (Google, Apple) if used
Use of Data
- We use your data to:
- Provide personalized and tailored AI coaching
- Analyze your progress in the 12 dimensions
- Improve our services and coaching algorithms
- Ensure security and prevent abuse
- Contact you regarding your account and our services
AI Subcontractors and Data Sharing
- To provide the coaching service, Serenzer transmits some of your data to third-party artificial intelligence providers. This section details with whom, what data, and for what purpose.
- AI providers used:
- OpenAI, Inc. (United States) — GPT-4o and GPT-4o-mini models for coaching chat and event briefing generation
- Anthropic, PBC (United States) — Claude models for coaching chat (alternative provider)
- xAI Corp. (United States) — Grok model for coaching chat (alternative provider)
- The active provider depends on our internal configuration and may change.
- Data transmitted to these AI providers:
- The content of your text and voice conversations with the AI coach
- Your personal development profile (12 dimensions, values, goals)
- The context of your Google Calendar events: title, date, time, location and description (for the next 50 events over 60 days)
- Google data that is NEVER transmitted to AI providers:
- Your Google contacts (read during synchronization but kept only in our infrastructure)
- Email addresses of participants in your events
- "Other contacts" retrieved via the Google People API
- Purpose of sharing: enable the AI coach to understand your situation, take your upcoming commitments into account and generate personalized, contextual responses.
- Commitments from our AI subcontractors:
- None of these providers is authorized to use your data to train their models (standard API clause).
- Data is processed in encrypted transit (TLS 1.2+).
- Transfers outside the European Union rely on the European Commission's Standard Contractual Clauses.
- Compliance with the Google API Services User Data Policy: the use and transfer of information received from Google APIs comply with the Google API Services User Data Policy, including the Limited Use requirements.
Other Technical Providers
- Beyond AI providers, Serenzer relies on the following providers for its infrastructure:
- Hostinger International Ltd. (Lithuania, European Union) — hosting of application servers and database.
- Stripe, Inc. (United States) and Stripe Payments Europe Ltd. (Ireland) — payment processing for subscriptions. Stripe receives your email address and the information strictly necessary for the transaction.
- Google LLC (Google Workspace) — sending of transactional emails (confirmations, password resets, notifications). These emails contain your email address and the functional content of the message.
- None of these providers receives the content of your conversations, your 12-dimension profile or your Google Calendar data.
Data Storage
- Your data is stored securely:
- Encryption of sensitive data in the database
- Mandatory HTTPS/SSL connections
- Restricted access with strong authentication
- Regular and secure backups
- Servers located in Europe (GDPR compliance)
Your Rights (GDPR)
- In accordance with the GDPR, you have the following rights:
- Access: view all your personal data
- Rectification: correct or update your information
- Deletion: delete your account and all your data
- Portability: export your data in a standard format
- Objection: refuse processing for legitimate reasons
- Complaint: file a complaint with the CNIL
Cookies
- We use:
- Essential cookies for authentication and security
- Preference cookies (language, settings)
- No advertising or third-party tracking cookies
- Ability to manage your cookie preferences
Contact
- To exercise your rights or contact us:
- Email: privacy@serenzer.com
- Response within a maximum of 30 days
- Data Protection Officer available
Contact : privacy@serenzer.com