Lumen talks with you using your own past — the things you actually lived through. Stuck on a hard decision? Ask the version of you who's already been there: how you got through it, what you really wanted. The clearer-headed you helps the you of today see straight — and choose from your gut, not your mood.
Founding price $9 $59/yr · locked in when Lumen opens.
No charge today. We'll email you the moment early access opens — full refund anytime once you join.
Not generic advice. Lumen answers using your real history — what you faced before, and how you came through it.
ChatGPT can play anyone — except the person you were last year. That voice only exists once something has been remembering you.
When you're about to act on impulse, the steadier version of you steps in — and reminds you what you actually want.
"Every time I reread my old entries, the clearer-headed me was right there — I'd just forgotten to listen."
I built Lumen because no app could tell me the thing I most needed to know: what was actually shaping my best and worst days. A general AI can answer a question, but it forgets you the moment you close the tab. I wanted something that remembers — quietly, privately — and hands me back the patterns I'm too close to see.
It's early. I'm sharing it now, at a founding price, to build it with the people it's actually for.
— The maker of Lumen
The person who knows best how to handle this is you — you just forgot. Lumen helps you remember.
Founding price $9 · no charge today · full refund anytime.
You join the founding list — no charge today. When early access opens, you'll be first in line to lock in the founding price ($9, normally $59/yr). If Lumen isn't for you, you're never charged, and once you do join it's a full refund anytime.
That's the whole point. Your entries are yours. They are never sold, never used to train outside models, never shown to anyone. Privacy isn't a feature here — it's the foundation.
Lumen is in active development. Early-access members get in first and get a direct line to the maker. If we don't ship, you're refunded automatically.