Privacy is at the heart of Sibyl.
We believe care includes confidentiality. This Privacy Policy explains how we handle your information securely and transparently.
Updated: May 2026.
1. Who We Are
The Sibyl App is operated by Sibyl Care B.V., a company registered in the Netherlands (Bergweg 265a, 3037EM Rotterdam).
Under GDPR, Sibyl Care B.V. is the data controller responsible for your personal data.
Contact: support@sibyl.care
2. What Data We Collect
Personal Information
Email address
Account and communication preferences
Information you provide when contacting support
Health-Related and Sensitive Data (Optional)
Information you choose to share about your pregnancy loss experience
Emotional or psychological experiences (e.g., grief, anxiety, mood)
Physical symptoms you describe as part of chat, journaling, or reflections
See Section 13 for more detail on how we handle this category of data.
App Usage and Technical Data
Device type and operating system
App interactions, session duration, and feature usage
Anonymised or pseudonymised analytics data
We do not collect precise location data.
3. How We Use Your Data (Legal Basis)
We process personal data only when there is a lawful basis to do so.
Consent
Processing sensitive health-related data you voluntarily provide
AI-powered emotional support, journaling, and personalisation features
You may withdraw consent at any time by deleting your account or contacting us.
Legitimate Interest
To operate, secure, and improve the App
To monitor performance and fix technical issues
To analyse anonymised usage patterns
You may object to processing on this basis at any time.
Legal Obligation
Where we are required to retain data by applicable law or regulatory authorities
4. Use of Artificial Intelligence
Sibyl is powered by artificial intelligence to provide emotional support, reflective prompts, and personalised content.
When you use AI-powered features
You are interacting with an AI system, not a human
AI responses are supportive and informational only — they are not professional medical or psychological advice
The AI does not have access to your full medical history
AI Provider
Sibyl uses Anthropic's Claude as its sole AI model. Anthropic processes your inputs to generate responses.
Anthropic will not use your data to train or improve AI models. This commitment is contractually binding in our Data Processing Agreement with Anthropic.
Data Handling
Your inputs are processed by Anthropic solely to generate AI responses
Sibyl does not use your conversations to train its own AI models
We do not sell your data or share it for advertising or marketing purposes
Anthropic processes data in the United States. This transfer is governed by Standard Contractual Clauses (SCCs) approved by the European Commission. See Section 6 for more detail.
5. Data Security and Storage
We take significant technical and organisational measures to protect your data.
Infrastructure
EU data residency: all core application data is stored on Google Cloud Platform, europe-west4 region (Netherlands) — within the EU
Encryption in transit: TLS 1.3 for all data moving between your device and our systems
Encryption at rest: GCP-managed disk encryption on all storage
No public-facing ports: infrastructure access is via Identity-Aware Proxy (IAP) tunnelling and hardware security keys
Secrets management: credentials and API keys are held in GCP Secret Manager — never in code or repositories
Access Controls
Two-factor authentication (2FA) is enforced on every system and service that supports it
Access to personal data is restricted to authorised personnel only
Identifiable user data — any view that links your email address to your data — is accessible only to key teammates when necessary to diagnose or fix a specific technical issue
External Contractors
Our development team works under a signed Data Processing Agreement (DPA) specifying security standards, data minimisation, sub-processor restrictions, and a 24-hour breach notification requirement. They may not use personal data for any purpose beyond delivering services to Sibyl.
6. International Data Transfers
Sibyl is based in the European Union and our primary systems are hosted on EU-based servers. Most of your data never leaves the EEA.
Transfer to the United States — Anthropic
When you use AI-powered features, your inputs are processed by Anthropic in the United States. This transfer is governed by Standard Contractual Clauses (SCCs) approved by the European Commission, providing an equivalent level of data protection.
All other services
Customer.io (email delivery) — EU data centre; no transfer outside the EEA
Google Cloud Platform (hosting and database) — europe-west4 (Netherlands); no transfer outside the EU
We take reasonable steps to ensure an equivalent level of data protection wherever data is processed.
7. Your Rights Under GDPR
You have the right to:
Access your personal data
Correct inaccurate or incomplete data
Request deletion of your data (“right to be forgotten”)
Restrict processing
Receive your data in a portable format
Object to processing based on legitimate interests
Lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens)
To exercise any of your rights, contact us at support@sibyl.care. We respond within 30 days.
8. Data Retention and Deletion
We retain personal data only for as long as necessary to provide the App or comply with legal obligations.
Account data: retained until you request deletion
Support communications: generally retained for up to 12 months
Security and system logs: retained for up to 12 months
You can delete all your personal data at any time by emailing support@sibyl.care. We will process your request and permanently remove your data within 30 days, unless retention is required by law. We make this option easy to find and remind you of it regularly within the App.
You may also delete your account directly via the App.
9. Children's Data
Sibyl is intended for use by adults aged 18 and over. We do not knowingly collect personal data from children. If you believe we have inadvertently collected data from a minor, please contact us immediately at support@sibyl.care.
10. Research and Insights
We may use aggregated and de-identified data — which cannot be linked back to you — for research, statistical analysis, and improving our services. Aggregated data is not considered personal data under GDPR.
11. Changes to This Policy
We may update this Privacy Policy from time to time. If changes are material, we will notify you through the App or by email. The current version is always available at sibyl.care/privacy.
12. Contact
Sibyl Care B.V.
Bergweg 265a3037EM RotterdamThe Netherlands
13. Health Information We Collect
Sibyl may process sensitive health-related data that you voluntarily choose to share, including:
Emotional and psychological experiences related to pregnancy loss
Physical symptoms you describe (e.g., pain, bleeding, recovery experiences)
Other reproductive health information shared through onboarding, journaling, or AI-guided reflections
This data is classified as special category data under GDPR (Article 9) and is processed only with your explicit consent.
We do not:
Use this data for advertising
Sell your data
Share health data for marketing purposes
Use your data to train AI models
Health-related data is:
Encrypted in transit (TLS 1.3) and at rest (GCP-managed encryption)
Stored on EU-based servers (GCP europe-west4, Netherlands)
Processed only to deliver emotional support and personalisation features
Subject to strictly limited processing by Anthropic solely to generate AI responses, governed by SCCs and a contractual no-training commitment
You may withdraw consent at any time by contacting support@sibyl.care. Once your deletion request is processed, your health data will be permanently removed from our systems within 30 days, unless retention is legally required.
Thank you for trusting Sibyl.
