Legal

Privacy Policy

This policy explains what data we collect, how we use it, and what control you have. We tried to keep it readable.

Precis is operated by TrueStandard Labs LLC, a Texas limited liability company.

What we collect

  • Name and email — when you sign up directly or via Google OAuth.
  • Supplement stack data — supplements you save are stored in our database so we can score them and show them back to you.
  • What you send us — the questions you ask, and any photo or lab file you attach, so we can answer them.
  • Usage data — we use Google Analytics to understand page views and device types. This data is not personally identifiable.
  • Cookies — standard cookies for session management and authentication (more on this below).

How we use it

  • Your account — to provide the service, manage your subscription, and keep you logged in.
  • Your stack data — to score your supplements and keep your saved stack.
  • Analytics — to understand which pages are useful and improve the product.
  • Email — to send product updates and our newsletter. You can unsubscribe anytime.

Who we share with

  • Stripe — handles payment processing. We never see or store your full card number.
  • Google Analytics — receives anonymized usage data (page views, device type, general location).
  • Google Gemini — writes our answers. The questions, supplement lists, photos and lab files you submit are sent to it so it can answer.
  • OpenAI — receives search text drawn from your question, to find matching passages in our library.
  • YouTube (Google) — serves the video player and thumbnails on our pages (see Cookies below).

What we don't do

  • We don't sell your data. Not now, not ever.
  • We don't share your supplement stack with anyone.
  • We don't send spam.

Your rights

  • Delete your account — email hello@precis.health and we'll delete your account and all associated data.
  • Unsubscribe from emails — use the unsubscribe link in any email we send.
  • Request your data — email us and we'll send you a copy of everything we have on file for you.

Cookies

  • Session cookie — required for login and authentication. Without it, we can't keep you signed in.
  • Google Analytics cookies — used for anonymized usage tracking. You can block these with your browser settings or an ad blocker.
  • YouTube player and thumbnails — clips play in YouTube's embedded player, and video thumbnails load from YouTube's servers. Both come from Google, may set Google cookies and receive your IP address. Google's privacy policy covers that data.

Updates

We may update this policy as the product evolves. Changes will be posted on this page with the date updated below.

Questions about your privacy? Reach out at hello@precis.health.

Last updated: October 2, 2026