New Mac app · Early access

Find it by when, not where.

Spool puts your email, messages, files and AI chats on one timeline. Search for the moment, and get the whole story around it.

Spool installs on a Mac. Open spool.day on your Mac to download it, or use the link we emailed you.

Download for Mac

macOS 26 or later · Apple silicon · Free during the beta

Spool’s Stack view: a day’s emails, messages, files and AI chats receding in time order, with one card in focus.

Beta. UI may differ. Demo data.

You don’t remember where you saved it. You remember what was going on.

The deck from right after the pricing call. The text that came in during the offsite. Spool finds things the way that thought goes.

Every thread, one spool.

Mail & CalendarMessagesFilesSlackChatGPTClaude

Ask for the moment.

Type it the way you’d say it to a colleague: “the deck after the pricing review.” Spool finds it, with the meeting before it and what happened after.

Spool search for “the deck after the pricing review”: the deck as the best match, with the pricing review two hours before and the launch channel 55 minutes later.

Any day

Your day, told in order.

Pick a day and see what happened: the meetings, threads and files, grouped the way you lived them. Nothing to set up or tag.

Tuesday, September 29 in Spool: a one-line summary of the day, time per client, then each episode in order, from the morning catch-up to the Series B launch retro.

People

Everyone gets a page.

Every email, text, file and meeting with one person, in order, plus what you owe each other. Read a client’s whole history in the minute before the call.

Sam Whitaker’s page in Spool: 121 moments together since July 6, upcoming meetings, and the latest email in October.

AI chats

Your AI chats, next to the work.

ChatGPT and Claude conversations sit on the timeline beside the doc, email and texts they were for. Find that answer again by what you were doing.

A morning episode in Spool: editing the pricing deck, asking Claude to sanity-check it, emailing it to Sam, and Sam’s reply, in order.

Beta. UI may differ. Demo data.

How you start

Open Spool on your Mac.
Choose what it can read: Mail, Messages, Calendar, folders and AI chats. macOS asks you for each, and you can take it back.
Your timeline builds itself. Nothing to set up, tag or file.

It stays between you and your Mac.

Spool reads the mail, messages and files already on your Mac and builds your timeline there. It never records your screen. Summaries use Apple’s on-device model, and anything that would use a cloud model is off until you turn it on.

You choose what it reads. macOS asks for each source, and you can take it back any time.
Your timeline, your file. It lives on your Mac and keeps working if Spool ever goes away.

Questions

Does it record my screen?

No. Spool reads what’s already on your Mac and in the accounts you connect: mail, calendar, messages, files and AI chats. No screenshots, no screen recording.

Where does my data go?

Your timeline is built and stored on your Mac. Summaries use Apple’s on-device model where it can. Anything that would use a cloud AI model is off until you turn it on, and says so plainly.

Do you train AI on my data?

No. Summaries run on Apple’s on-device model, and cloud AI is off unless you turn it on.

How is this different from Spotlight or Siri?

Spotlight finds files by name. Spool shows what happened: email from any provider, Slack, and ChatGPT and Claude chats next to your files and messages, in order, with a page for every person you work with.

What if Spool shuts down or gets bought?

Your timeline lives on your Mac and keeps working without us. It doesn’t depend on our servers to show you your own history.

Can someone else use it to see my stuff?

Spool only reads your own accounts, on your own Mac, with permissions you grant in macOS and can take back at any time.

What does it cost? What do I need?

It’s free during the beta. You’ll need a Mac: macOS 26 or later · Apple silicon.

Your Mac, in the order it happened.

Download for Mac