Your chat history is the most personal thing you’ll upload to a tool this year.

This page explains what happens with it. Plain language only.

What we collect

When you sign up, Google gives us your name and email. When you complete onboarding, you give us the first name of one specific person you communicate with, the kind of relationship you have with them, and — optionally — your chat history with that person and an agreement document if you have one. We store this in a private database on Supabase, encrypted at rest, with row-level security so even our own front-end can’t fetch anyone else’s data.

What we do with it

We send relevant pieces of your data to Claude (the AI we use, made by Anthropic) over a secure connection when you ask Marlow to draft a reply or analyse your chat. Anthropic’s commercial API does not train on customer data by default; we don’t enable any setting that would change that.

We do not share, sell, or analyse your messages for any purpose other than helping you with the next reply. We do not have an analytics product that mines your conversations. We do not sell data to anyone.

What we never do

• Contact the other person in your relationship. We don’t even know who they are beyond the first name you give us.
• Send messages on your behalf. Drafts only. You send.
• Use your chat history to train any model.
• Retain data longer than you keep it. Delete a relationship and everything goes — chat, document, threads, drafts.

Deletion

Settings → Delete this relationship. Wipes your chat history, your uploaded document, every thread, every saved draft. Deletion is real — not soft-deleted, not archived. To delete your account entirely, use the second button on the same screen.

Contact

Questions or requests about your data: fergus.gool@gmail.com.