Privacy policy
Last updated 10 November 2026
Sylvie is a personal voice assistant run as a private project for a small circle of invited people ("you"). This page says what Sylvie stores, why, who else touches it, and how to make it go away.
What Sylvie accesses
When you sign in with Google you grant Sylvie access to the Google accounts you connect: Gmail (read, search, send, label, archive and trash mail, read attachments), Google Calendar (read, create, change and delete events, respond to invitations), your contacts (read only) and Google Drive (read only). Sylvie uses this access only to do what you ask on a call and to prepare the briefing she opens the call with.
What Sylvie stores
- Your name, mobile number, language, voice and call preferences, and the "about you" text you choose to write.
- An encrypted Google refresh token per connected account, so she can act without you signing in every call.
- Short notes she keeps about you: preferences you tell her to remember, a few-sentence summary of each call, and research she did before a call. These let her stop repeating herself.
- Call usage (minutes per day) to enforce fair-use limits.
Sylvie does not store the content of your email, calendar or files. She reads them live during a call and keeps only her own notes. Call audio and transcripts are handled by the voice platform below, not stored by Sylvie.
Who else processes your data
To work, Sylvie relies on a few services, each receiving only what it needs: Anthropic (the Claude model that reasons over your mail and conversation), Vapi (the voice-call platform, including speech recognition and text-to-speech providers it routes to), Twilio (the phone line), Brave Search (web lookups when she researches someone), and Railway (hosting). None of them is allowed to use your data for anything but providing the service to Sylvie.
Google data in particular
Sylvie's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements. Google data is never sold, never used for advertising, and never read by a human except you, or with your explicit permission to fix a problem.
Your controls
- Revoke Sylvie's Google access any time at myaccount.google.com/permissions. She stops working for that account immediately.
- Edit or delete the "about you" text and your settings on your Sylvie page.
- To delete your account and everything Sylvie holds about you, write to korenma94@gmail.com. It is done within seven days.
Contact
Questions about privacy: korenma94@gmail.com.