Halo

Local-first · Apple Silicon

Meet Halo.

Your local AI, in the notch.

A quiet companion at the top of your Mac. It watches the screen, listens to your calls, and learns what matters, then taps you on the shoulder before you ask: a draft that's ready to send, a message that can't wait, a meeting that just moved, a build that just broke. Quiet by default. Everything it sees and hears stays on your machine.

Download for Mac Explore features

Runs on your Mac · Nothing leaves it · No telemetry · Free forever

9:41
halo
on this mac
private by design
no telemetry
Halo · idle

Voice

Just say the word.

Press ⌘⇧M or say “Hey Halo” and start talking, anywhere on your Mac. No window to find, no app to open. Halo is already listening.

⌘⇧M · or “Hey Halo”

Autocomplete

It finishes your sentence, the way you would have.

Ghost text appears as you type, in any app. Press Tab to take it; keep typing and it quietly steps aside. It writes in your voice, not a robot's.

⇥ to accept · works everywhere you type

Record

The call takes its own notes.

One shortcut records any call, then writes it up with speaker names and a clean summary the moment you hang up. The audio never leaves your Mac.

⌘⌃R · transcript, names, summary

Recall

Ask what was said. Weeks later.

Halo remembers the meaning of what crossed your screen and your calls, never the pictures. Ask in plain words and get the answer, with its sources.

Plain-language search · sources attached

Act

It doesn't just answer. It acts.

Create the event, draft the reply, look up the contact. Halo uses the tools you already have to finish the job, then shows its work so you stay in control.

Calendar · Mail · Contacts · and more

Automations

Tell it what to watch. It takes it from there.

Acting on demand is only half of it. Describe a standing job in a sentence, an inbox, a repo, a price, and Halo runs it on your Mac, watching while you work. It pings you when something needs you, and never sends, buys, or deletes without your okay.

Runs on your Mac · notifies, never acts alone

Connected tools

Bring any tool you want.

Beyond the built-in integrations, point Halo at any MCP server and it can use those tools too, right where your work already lives. You choose what to add, and it shows its work so you stay in control.

Model Context Protocol · you choose what to add

Not another AI app

It's not a clone. It's a category of its own.

You already know tools that do one of these: dictation, autocomplete, meeting recorders, AI agents. The difference with Halo is that it's all of them at once, on your Mac, and it actually remembers.

See how Halo is different

  • Chatbots talk. Halo remembers what you saw, heard, and typed.

  • Dictation apps type. Halo also recalls, drafts, and joins your meetings.

  • Cloud agents send your life to a server. Halo's brain runs on your Mac.

A day with Halo

It's there before you ask.

7:42 am

Your day, already sorted.

A short brief each morning: what's coming, who you owe, what slipped yesterday.

11:15 am

It finishes your sentence the way you would have.

Ghost text wherever you type. Tab to take it; keep typing and it gets out of the way.

2:00 pm

The call takes its own notes.

One shortcut records any call, then writes it up with speaker names and a summary when you hang up. The recording never leaves your Mac.

6:30 pm

Ask what was said.

Weeks later, ask in plain words. You get the answer, with its sources.

while you're away

It keeps watch so you don't have to.

Set a standing job in a sentence: the inbox, a repo, a price. Halo runs it on your Mac and pings you only when something needs you, never sending or buying on its own.

See who Halo is for

How it works

Three quiet steps.

Everything happens on your Mac. There is no server in this loop.

  1. 01

    Notice

    Halo watches your screen and listens only when you ask it to. Every frame is read once, then deleted.

  2. 02

    Understand

    What it saw becomes a short written memory: the meaning, never the picture.

  3. 03

    Help

    A finished sentence, a note, a nudge. Surfaced only when it's worth your attention.

The contract

Privacy isn't a feature.
It's the architecture.

Your screen, your calls, your memory. Processed on your Mac. We couldn't read them if we wanted to.

  • Every captured frame is deleted after a single read.

  • Audio becomes a transcript, then it's gone. We never keep the sound.

  • Memories are written summaries, never images, never screenshots.

  • No telemetry. We don't know how often you launch the app.

  • The cloud is opt-in. Off by default, it's out of the loop entirely.

Coming soon

One Halo, every device.

Text Halo from your phone, and let it text you the moment something needs you while you're away. The iPhone companion is in beta testing, with Apple Watch next, then Vision Pro and glasses, all with end-to-end encrypted sync between them. Pro and Lifetime supporters fund this work.

See the roadmap

Pricing

Free for everyone. Pro for the curious.

See full pricing
Free forever

On this Mac

$0 forever

Everything local, for everyone.

  • All ambient features
  • Dictation & call transcription
  • Memory, recall & journal
  • No account, no sign-in
Download for Mac

Halo Cloud

$9.99 / month

Sharper answers and longer conversations, when on-device isn't enough.

  • Longer conversations, better drafts
  • Big call & memory summaries
  • No Logs & Model Training
  • 7-day free trial
Start free trial

Lifetime License

$49 one-time

Point Halo at a server you control. One payment, forever.

  • Bring your own AI server
  • Works with the tools you already run
  • No data through our servers
  • Yours for life, no subscription
Claim a Lifetime License

FAQ

Questions, honestly answered.

More questions
Do I need an account?
Not to use Halo. Everything runs on your Mac with no sign-in. A Halo Cloud subscription needs an account; a Lifetime License is tied to an email so you can re-redeem on a new Mac, but doesn't require day-to-day sign-in.
Does it work offline?
Yes. Halo is fully offline by design. Halo Cloud needs network. Bring-your-own-server mode follows whatever server you point it at; if that's running on the same Mac, it works offline too.
Does Halo collect any data about me?
No telemetry by default: Halo doesn't even know how often you launch it. Crash reports are strictly opt-in from Settings → Privacy, off out of the box, and contain no screen contents or audio.
What does Halo Cloud cost me in privacy?
Halo sends your message over an encrypted connection. We process it under agreements that prohibit training on your data, logging your prompts, or sharing them with anyone. Your data is never sold and never used for advertising. Everything ambient (your screen, calls, memory) stays on your Mac no matter which plan you're on.
What are the Mac requirements?
Apple Silicon (M-series) and macOS 26 or later. Halo will not run on Intel Macs.

Try Halo today.

A small download. A quiet difference.

Download for Mac

Or be first when Halo reaches you on iPhone:

Halo is free forever. If it's useful, you can support development.