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

no contact list to fill in. no relationship graph to draw. you just talk; the pages write themselves.

why it's different

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

Other apps make you fill in contacts, draw graphs, maintain profiles. Mooncake reads the conversation and writes the pages for you.

ChatGPT's "memory" is one fuzzy bag of facts about you. When you ask about Donna, 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 Donna.
  • 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 Donna, possibly.
one flat bag, scoped to nobody
Mooncake
Donna 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

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
spent the day with mum
Did she stick with the Thursday salsa? You said she'd been restless before that.
linked from a chat last week
a passing mention,
linked to what you said before

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
today was just a lot
Yeah. You don't have to land it in a sentence. Sit with it for as long as you want. 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

Donna 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.

what it actually looks like
The Mooncake new-chat screen showing the prompt 'What's on your mind? Say whatever's up — messy is fine. I'll keep track of the people you mention.'
say something
Donna's page in Mooncake, About view. Subtitle 'My mom'. Background section lists 'School nurse for 25 years' and 'Hums between sentences when she is scared'. Relationships section shows 'Daughter of Margaret (Nana)', captured from a separate conversation.
who they are
Donna's page in Mooncake, Timeline view. April 2026: 'Surgery went well; recovering at home, enormous relief'. June 1989: 'Met Robert at a wedding in 1989, family-canon love story'.
and how it grew

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.

And without you doing anything, the people who come up most settle nearer the centre. Core in the middle, regular a step out, occasional on the rim. Drawn for you, never by you.

And without saying anything, recent conversations leave a quiet read on each face. Warm, steady, or cool. About the conversations, never about the people. Optional. Off by default.

  • Make as many groups as you need. Name them anything.
  • The rings move on their own as your weeks shift.
  • Yours alone. Nobody sees the shape but you.
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. Every fact has a date and a link back to the conversation it came from, so you can see exactly why Mooncake remembers what it does.

And if you ever want it gone, it goes. Whole pages, whole conversations, the whole account. Yours, the whole way through.

your AI, your pick

Mooncake is the memory layer. You bring the AI.

Pick Claude or ChatGPT for any conversation. Switch any time. Your pages stay yours, either way.

Claude or ChatGPT

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.

a note from the maker

I'm Corey, a software engineer. Ten years in fintech, five of those at Swiss banks where a single leaked secret ended careers. The same instinct goes into Mooncake: what you tell it should never leave the room.

find me on LinkedIn ✿