Privacy Policy
This page describes what happens to a dream in Tarn today, as the product is built now, not as it is planned. It has not yet been reviewed by a lawyer and is not legal advice. When something changes, this page changes with it.
Our privacy principles
A dream is among the most personal things a person can share, and in Tarn it is usually someone else’s: your client’s. Privacy is the same ethic as the product, applied to their data.
- You decide what is kept. Export everything you have saved, or delete a dream or a client, at any time. Deletion removes it from our database at once; nothing is hidden and kept. The database’s daily backups still hold it for up to 7 days.
- No other practitioner. The dreams you save belong to your practitioner account. No other practitioner’s account can open them, and there is no way to share them from inside Tarn. Tarn’s operator can technically reach the database to run the service. We do not read dreams. We open one only if you ask us to, in writing, to fix a problem with it, and we will tell you before that ever changes.
- Never training data. Tarn does not train models on dreams, and neither does Anthropic, the AI provider that drafts the readings.
- We collect the least. No advertising trackers, no profiling, no selling data. Only what the tool needs to do its work.
- You confirm your client’s permission. Before your first dream, you confirm you have your client’s permission to store their dream in Tarn and have an AI draft reflections on it.
Where a dream goes
When you ask for a reading, the dream is sent over an encrypted connection to Tarn’s server, hosted by Vercel, and on to Anthropic, which drafts the reading. There is no way to produce a reading without this; it is how the tool works.
Tarn’s server keeps no copy of that request. For each call it logs which kind of call it was, the model, how long it took, its size and cost, and whether the answer came back well formed; never the dream or the reading. Like any website, the hosting logs record each request’s address and page, not its content.
Anthropic keeps the request and the reading for 30 days by default, and may access them in that time for safety and security purposes. They are never used to train its models. Tarn uses Anthropic under a Business Associate Agreement, through an account configured for health information.
What is stored, and where
A dream you save is stored in Tarn’s database, hosted by Supabase, under your practitioner account, with its readings and the figures recorded from it. It stays there until you delete it. It is encrypted in transit and on the hosting provider’s disks; Tarn does not add a further layer of encryption of its own today.
If a save cannot reach the database (a dropped connection, a failed save), the dream is kept in your browser so it is not lost, and is removed from the browser once it saves. That copy belongs to your account, so anyone else who signs in to Tarn on that browser does not see it. Signing out removes it, so a dream that has not saved by then is gone. Your reactions to a reading, with any note you wrote and the dream’s title, are kept in your browser until you sign out. Clearing your browser data removes all of it.
About you, we keep your email address, the name you are shown by in Tarn, the date and wording of the permission you confirmed, and when you sign in. For each client, we keep the name you give them and the consent you recorded for them. Signing in uses a one-time link sent to your email; there are no passwords.
Your choices
- Export: on the Dreamers page, “Export everything (JSON)” downloads every client, dream, reading and figure you have saved.
- Delete a dream: its readings go with it.
- Delete a client: “Delete this dreamer” removes them and all of their dreams, readings and figures.
- Close your account: there is no button for this yet. Ask through the contact page and we will delete your account and everything saved under it.
Who else handles it
- Vercel hosts the site and the server that passes a dream to Anthropic.
- Supabase hosts the database where saved dreams are kept.
- Anthropic drafts the readings, as described above.
- PostHog records which of our public pages are visited, like this one, and which links and forms are used, with a cookie that recognises a returning browser. It is never loaded on the workbench or the Dreamers page, so it never sees a dream.
- Resend delivers what is sent through our contact and early-access forms.
Questions about privacy can go to the contact page.
Working draft · October 2026