The assistant stays on your computer.
Watson is a desktop app for Windows and macOS. Your mail, calendars and market lists live in a database on your own machine, and Watson, the assistant, can read, summarise and draft on a model that runs right there, offline if you like.
Beta · Windows (64-bit) and macOS 11+ (Apple silicon and Intel)
Screens on this page are illustrations with sample data.
Gmail and Outlook sign in on their own page, so Watson never sees your password; any IMAP account works too. Threads, snooze, send later, undo send, rules and tags that sync back to the server.
Sends your own account traffic to your mail servers, when syncingYour mail as a feed, day by day, with each email set as a post: who wrote, which account it came to, a line on what it's about, and the message itself. In Importance order the people who matter to you come first, and their posts are larger; mail that needs a reply is marked. Make it your start screen.
Runs on this machine
The Casebook, light theme. Illustration with sample data.
The Season view over a map, light theme. Illustration with sample data.
The Season view draws the year as four bands around an open board. Works with Google, Microsoft, iCloud, Fastmail and any CalDAV server. The Join button appears for Teams, Zoom, Meet and nine more meeting services.
Put a map behind the board, and every event with a place grows a pin. Click it, and the map flies to the place and marks it.
Sends your own account traffic to your calendar servers, when syncing Sends the places you look up to a geocoding service, only once you turn the map onPortfolios, watchlists and a news wall laid out like an edition. Switch it on beside Mail, or run Watson without mail at all.
Sends your licence key and the tickers you look up to Watson's data service, while Stocks is onNothing is typed in. Watson builds it from the mail in every account you add, and sorts the people you write to from newsletters, receipts and robots.
When two addresses look like the same person, a work one and a personal one, it suggests grouping them and waits for you. Once grouped, that person has one history across all your accounts.
A person's page keeps their addresses, your notes, what Watson remembers about them and your whole correspondence. Their priority decides how high their mail sits in the Casebook.
Runs on this machine
People, light theme. Illustration with sample data.
Switch off what you don't need. Nothing is deleted, only paused.
The search bar at the top of every view takes a sentence. Type “the contract Halden sent before the summer” and Watson reads it into filters you can see and remove: who, when, which words. When nothing matches exactly it says so, then shows the closest mail, or mail that matches by meaning rather than wording.
Runs on this machine, with the model you chose
Mail search and a Stocks lookup, light theme. Illustrations with sample data.
Space then W, from any screen, opens a larger box for a longer question. The shortcut can be changed.
Save a search with the bookmark in the bar, and it becomes a view in the sidebar.
In the Casebook, Contacts and the calendar, the same bar narrows the view you are in.
In Stocks, it finds a company by name or symbol, with its price, and adds it to a portfolio or a watchlist.
Watson runs on a small model that downloads once and works on your own hardware, using the GPU when there is one: Wiggins, Lestrade or Mycroft, whichever suits the machine, or any GGUF model you choose. Prefer something bigger? Point it at Ollama or LM Studio on your network, add your own OpenAI, Anthropic, Gemini or OpenRouter key, or use your ChatGPT plan through Codex.
Runs on this machine by default
Sends the text in that request to a cloud AI provider, only for features you pin to a cloud modelThe assistant panel, light theme. Illustration with sample data.
Ask for a summary of several messages at once. It searches, reads them, and says what is settled and what waits on you.
Ask for a fact the way you remember it. It finds the booking and quotes the reference. A memory taken from mail waits for your OK.
Price, setup, news and the next earnings, read from the same figures the Stocks tab shows. It gives no advice.
With a ticker open, “this one” means that ticker. The same holds for an open message, a contact, or the study you are writing.
Describe a question in one sentence. Watson writes the study, runs it and fixes what fails; keeping it is your call.
Ask about your stocks from Mail. The Mail side asks the Stocks side for you, and answers with both.
The assistant panel, light theme. Illustrations with sample data.
A suspicious message, light theme. Illustration with sample data.
Security bar. A red bar explains, in plain words, when something is off: a familiar name from an unfamiliar address, a look-alike domain, a link that says one place and goes to another, an invoice.pdf that is really an archive. The checks run on your machine, and no AI is involved.
Runs on this machine
Remote images stay blocked until you allow them, so tracking pixels never report back.
Unsubscribe bar. One click for the link, and for a mailto unsubscribe you see the address before anything is sent.
Search. Full-text search across every account, in English, French, German, Russian, Armenian and more. It tells you when it has widened your search.
Runs on this machine
18:40 · sun 5° · light theme
Watson comes with both themes. You've just watched one become the other.
Market data comes from Watson's data service. Your licence key is the credential.
Sends your licence key and the tickers you look up to Watson's data service, while Stocks is onThe news wall turns your lists into an edition: a lead story, what moved, what to set aside.
The news wall, dark theme. Illustration with sample data.
Quotes refresh every minute, including pre-market and after hours.
A ticker's dashboard, dark theme. Illustration with sample data.
A setup score from 0 to 100 shows its arithmetic. It is not a forecast and not advice.
Watches tell you when: up to six conditions over about seventy signals.
The Setup tab and a watch, dark theme. Illustration with sample data.
Ask a question in plain words, and Watson writes the study for you.
A study is a small Python program that answers one question about a ticker. You don't have to read it: Watson writes it, runs it on real tickers, fixes what fails and shows you the answer. Keeping it is your call.
Studies run in a sandbox on your machine, with no network and no access to your mail. Writing one needs a larger model than the three that run on the machine: your ChatGPT plan, a cloud key, or a local server with a long context.
The study runs on this machine, with no network
Write a study and the workbench, dark theme. Illustration with sample data.
Show workings runs a study again and lays out every step it took, beside its code.
Pick a step, and the lines that did it light up in the editor. Each step shows the prices it read and the values it worked out, under the study's own headings, so any number on a study's card can be traced back to where it came from.
Show workings in the study workbench, dark theme. Illustration with sample data.
Twice every trading day, at 07:45 and 17:00 New York time, the data service ranks about 1,300 US stocks by the same setup score.
Top scorers, dark theme. Illustration with sample data.
Your channels: follow finance channels on YouTube, and your model reads each new video and names the tickers.
Sends requests for feeds and transcripts to YouTube, while you follow channelsYour channels, dark theme. Illustration with sample data.
Watson keeps your data at home, and it names every exception.
| Touchpoint | When | What is sent |
|---|---|---|
| Your mail and calendar servers | When syncing | Your own account traffic |
| Watson data service | While Stocks is on | Your licence key and the tickers you look up |
| A cloud AI provider | Only for features you pin to a cloud model | The text in that request |
| YouTube | While you follow channels | Requests for their feeds and video transcripts |
| Model downloads | Once, when you pick a model | A request for the file, to Watson's server, or to Hugging Face for a model you fetch there |
| Sender pictures | On by default, can be switched off | A hash of the sender's address, or the domain |
| Weather and maps | Only if you opt in | Place names, to the Photon geocoding service; for the map, the area on screen, to OpenFreeMap |
| Update checks | About once a month | Your app version and platform |
Passwords, tokens and API keys stay in your system's keychain, never in the database and never in backups.
A hardware check reads your memory, cores and graphics and recommends one of three models, named from the stories: Wiggins for lighter machines, Lestrade for most, Mycroft for a machine with memory to spare or a graphics card. Downloads come from Watson's own server, resume after an interruption, and are checked against a SHA-256 fingerprint before first use.
The three are a recommendation, not a limit. Fetch any GGUF model from Hugging Face, or choose a file you already have, from an LM Studio or Ollama library or an external drive, and Watson uses it where it sits. Every model is tested on this machine before a profile can use it.
Sends a request for the file to Watson's server, once, when you pick a modelSettings › Models, dark theme. Illustration with sample data.
| Model | Size | File size | Memory to run | Note |
|---|---|---|---|---|
| WigginsFor lighter machines | 0.8B | 0.81 GB | 1.7 GB | For lighter machines |
| LestradeFor most machines | 2B | 2.01 GB | 3.1 GB | For most machines |
| MycroftFor a graphics card, or memory to spare | 3–4B | 2.57 GB | 5.5 GB | For a graphics card, or memory to spare |
| Langdale PikeFor search by meaning | 300M | 0.33 GB | not listed | For search by meaning |
| Any GGUF modelFrom Hugging Face, or a file you already have | your choice | your choice | your choice | From Hugging Face, or a file you already have |
Every model is tested against a sample mailbox before Watson gives it more to do.
The beta opens in waves. Leave your email and we'll send a trial licence key when your wave is ready.
A licence key unlocks the modules you choose, and it is checked on your computer. Nothing about it is sent anywhere.
We've sent a link to confirm your address.