Mooncake est. this year · est. with care

A chat that keeps up with your people.

Mooncake remembers the who, the when, the what-you-said-last-week, so you don't have to reintroduce everyone every time you open it. Rant when you need to. Reflect when you want to.

for your phone soon on TestFlight private by default
why it's different

Most chat 'memory' guesses. Mooncake keeps the page.

ChatGPT's "memory" is one fuzzy bag of facts about you. When you ask about Daisy, it makes a guess. Mooncake gives every person you talk about a real, specific page that grows with you.

elsewhere
  • User has a mum named Daisy.
  • User mentioned salsa class.
  • User feels their mum is restless.
  • User has a brother who works in tech.
  • User likes pizza.
  • User asked about Sarah at the offsite.
  • User's coworker also called Daisy, possibly.
one flat bag, scoped to nobody
Mooncake
Daisy your mum
started salsa class · Thursdays
restless since the house got quiet
painted the spare room yellow last week
one page per person, organised by when you said it
For the technically curious

Five things Mooncake's memory does that ChatGPT's "Memory" feature doesn't:

  • Per-person scoping. When you mention Daisy, we load Daisy's facts. Not a globally-shared bag. That means context stays signal-rich instead of getting diluted by everything else you've ever told us.
  • Reconciliation. If you said "Daisy works at Stripe" six months ago and "Daisy works at Google" last week, the older fact is marked superseded. Old "memories" don't silently coexist with new ones to confuse the model.
  • A real time axis. Each fact is typed as stable trait, current state, past event, or relationship, with timestamps. So "on maternity leave (as of two weeks ago)" decays differently than "is a nurse".
  • Provenance on every fact. Every memory points back to the exact message that produced it. You can audit, edit, or remove a single piece, and we never hallucinate an origin.
  • You're the source of truth. When confidence is low, a small Review queue asks you. Facts you've verified are immune to silent overwrites by extraction. The system is built so it never quietly disagrees with you.

here's how the page gets written.

how it stays with you

The shape of remembering.

You talk. Mooncake quietly picks up the small things you said about someone. Next time they come up, it's already there.

1
ranted to mum about how restless she's been since the house got quiet. she signed up for salsa.
you say it,
in your own words
2
we put it where
it belongs
3
Daisy
your mother
started salsa class · Thursdays
restless since the house got quiet
how's mum doing with the salsa thing?
next time,
it's already there

so in practice, it sounds something like this...

what it sounds like

A conversation, held gently.

Two modes: rant when you just want to be heard, reflect when you want a friend who'll ask the right question back.

reflect
a quiet Tuesday
Tomás is being weird about his PhD again
Makes sense. Tomás just defended three weeks ago. Is this the same restless energy as last time, or something new?
remembers, then asks back
reflect
over lunch
had coffee with Dana this morning
Is Dana still buried under the Q3 launch, or did her team ship it?
opens a specific door
rant
past midnight
Mark made me cry in the standup again
That sounds awful. Mark has been doing this a lot lately. I'm here.
holds, doesn't probe
reflect
late at night
Ciaran just moved to Manchester
Ciaran the twin, or Ciaran the coworker? You mentioned one of them might.
checks before guessing

and every person you mention quietly gets a page of their own.

a page for each person

Daisy gets her own page.

Every person you talk about quietly gets a page of their own: what they're like, how they relate to you, what's going on in their life right now, what's happened lately. It writes itself as you talk. You can edit anything.

Tap "Ask" on any page to ask only about that one person. No other context, no noise.

you stay in charge

We ask, before we assume.

When Mooncake isn't sure who you meant, or whether something is worth saving, it doesn't guess. It asks. A small, quiet review queue waits for you, with one question at a time.

You're always the source of truth. Mark a fact as kept, edit it in your own words, or leave it out. Nothing about your people is decided without you.

small touches
Conversations name themselves
30 days to undo, on everything

and the people you love don't fit into one neat box.

your shape of close

The layers of your life.

Family, partners, the friends you forget to text, the people from the gym, the work crowd. You build the circles that fit your life. Mooncake learns them and quietly sorts the new faces into the right one.

  • Make as many groups as you need. Name them anything.
  • Each circle picks up its own quiet colour.
  • Yours alone. Nobody sees the shape but you.

if any of this feels like yours...

a little note

Leave your address, we'll write.

Mooncake is in private trials. We'll send an invitation when there's a quiet seat for you. No marketing list. No "15% off." Just a note when it's your turn.