For founders
The journal built for founders who actually build.
Three sentences a day, a paragraph on a bad one. Every Sunday, Prism reads the week back to you — the decisions you kept revisiting, the questions you couldn't answer, the bet you're slowly talking yourself into.
Why founders
Because you already run the company in your head.
Founders live inside a running monologue — hiring, runway, the deploy that broke, the investor call tomorrow. Most of it never lands anywhere. You have the same realisation on three different walks and forget it a fourth time.
A journal should hold that thinking. Not as a perfect daily record — you will not keep that — but as a loose log that something else reads for you. Prism is that something else. Write whatever you have the energy to write; Prism keeps it and hands it back when it matters.
How it works
A weekly Mirror that reads your company back to you.
You write entries throughout the week — on your phone, at the desk, anywhere. Prism classifies and embeds each one, not to tag it for you, but to notice when the same idea keeps coming back under different words.
Every Sunday morning, you get a Mirror: the week's hero sentence, the pattern you did not see, one prediction about the week ahead. It's not a dashboard, it's a read. It is usually the thing that tells you which of three possible Monday priorities is actually the priority.
What you keep
A behavioural record that compounds.
At month three, the Mirror starts noticing cross-domain patterns — the weeks your sleep drops below six hours and the weeks you hire too fast. At month six, the shape of your company as a founder starts to look like something specific, readable, legible to you and no-one else.
Leaving Prism after a year means losing an irreplaceable record of yourself as an operator. That's the point. Most tools want to be switchable. This one wants to be impossible to switch away from, because by then it knows you better than your Notion does.
Common questions
Before you sign up.
I barely journal — is this enough to be useful?
A sentence a day is enough to start. The Mirror needs about ten entries to surface its first real patterns. After that it works with however much you give it — a phrase is a data point, not a failure.
Does Prism replace Notion / Obsidian / a founder diary?
No. Those are places you organise thinking. Prism is the layer on top that reads thinking back to you. A lot of founders keep both — Notion for spec and strategy, Prism for the loose running monologue that would otherwise vanish.
Is my writing used to train AI?
No. Anthropic and OpenAI process your entries with zero-retention enterprise terms. Nothing you write leaves our boundary to train anyone's model. Delete means immediate delete, not a 30-day soft delete.
What does the Sunday Mirror actually look like?
One hero sentence in the font of a literary essay. One pattern the week surfaced. One predicted question for the week ahead. A link to the full reading with correlations and the evidence behind each claim.
Ready to see what your week looks like from the outside?
Invite-only beta. We read every request before handing out a seat.
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