Subprocessors
Dieses Dokument ist in englischer Sprache verfasst. Die englische Fassung ist im Falle von Widersprüchen maßgeblich.
This document is written in English. The English version is the authoritative version and prevails in the event of any conflict.
OncoChat, a product of Sifnos Inc., uses the following third-party subprocessors to deliver our service. This list is updated as subprocessors change. Material changes will be communicated to users per our Terms of Service.
Last updated: September 24, 2026
| Subprocessor | Purpose | Location |
|---|---|---|
Google Cloud Platform Infrastructure | Cloud infrastructure, compute, storage, Cloud SQL (PostgreSQL), Cloud Run | United States |
Firebase (Google) Authentication | Authentication, user identity management | United States |
Google Vertex AI AI/ML | AI/ML model hosting and inference (Gemini) | United States |
OpenAI AI/ML | AI/ML model inference for conversational features | United States |
Twilio Communications | SMS messaging, voice calls, phone number verification | United States |
Vercel Infrastructure | Web application hosting and CDN | United States |
Meta Platforms (Meta Pixel and Conversions API) Advertising | Advertising measurement on our public marketing pages, and a hashed (not readable) email and phone when you request a Care Coach or Private Concierge, so we can tell which campaigns reach people who need us. No health information. Off if you choose "Essential only" or your browser sends Global Privacy Control. | United States |
OpenAI (ChatGPT Ads measurement) Advertising | Advertising measurement on our public marketing pages, and a hashed (not readable) email and phone when you request a Care Coach or Private Concierge. No health information. Off if you choose "Essential only" or your browser sends Global Privacy Control. | United States |
Data Handling
- All subprocessors are bound by data processing agreements (DPAs) that include EU Standard Contractual Clauses where applicable.
- We do not permit subprocessors to use your personal data for their own marketing or advertising purposes.
- Health data shared with AI/ML providers is used solely for generating responses within OncoChat and is not retained by those providers for model training unless separately consented to.
- All data is encrypted in transit (TLS 1.2+) and at rest.
Questions about our subprocessors? Contact us.