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Your screen stays on your Mac.

Recording, transcripts, captions, redaction, organising and Zumi all run on your Mac. Something leaves only when you choose: a share link, a team workspace or an update check.

Take the airplane testRead the privacy policy

Private by design

Turn off Wi-Fi. Everything still works.

Recording, transcripts, captions, redaction, organising and Zumi all run on your Mac. Something leaves only when you make a share link.

Airplane-mode testLIVE

0 Bsent while editing

  • Record 2 minutes with camera and voice
  • Transcribe and add captions
  • Ask Zumi to cut pauses and blur secrets
  • Export 16:9, 9:16 and a PDF guide

On your Mac

  • Recording and editing
  • Transcripts and captions
  • Zumi planning
  • Finding and blurring secrets
  • Names, tags and search
  • Teleprompter speech

Only when you choose

  • Share links
  • Team workspaces
  • Update checks

AI assistants you connect see only what you let them search.

How Zumi’s AI works

AI that runs where your recordings are.

Zumi doesn’t send your recording anywhere to understand it. Here is what happens when you ask for an edit.

  1. 1

    It reads the take on your Mac

    The transcript, every click and key, and the text on screen are worked out on your Mac when you record.

  2. 2

    It plans on your Mac

    Zumi uses Apple’s on-device model where it’s available, and a built-in planner handles common requests on every Mac.

  3. 3

    You see the plan first

    Nothing changes until you press Apply, and the whole plan is one Undo.

  4. 4

    No connection needed

    Planning, captions and redaction work with Wi-Fi off. Nothing is uploaded to edit.

Built for AI assistants

Let your assistant drive. Locally.

ZumCast ships a command-line tool and an MCP server, so Claude and other assistants can record, edit with Zumi, and export, without a cloud account. Anything an assistant starts shows on screen, and unsigned requests ask you first.

  • CLI with JSON output for scripts and CI.
  • MCP tools for plan, apply, search, shots and export.
  • Siri and Shortcuts for take a screenshot, capture text, start recording.
# Plan an edit, see it, then apply
zumcast zumi "Billing.zumcast" "cut the pauses and make it vertical"
zumcast zumi "Billing.zumcast" "cut the pauses and make it vertical" --apply

# Export every version, branded
zumcast export "Billing.zumcast" --all --brand default

# Find the take by what you said
zumcast search "invoice" --json

Accessible

Made for every way you use a Mac.

Every control speaks to VoiceOver, every flow works from the keyboard, and the dark theme passes contrast checks. Increase Contrast, Reduce Motion and Reduce Transparency are all respected.

Security notes

Safe to record your real dashboard.

  • Remote capture is always visible

    Anything an assistant or script starts shows on screen, so nothing records quietly.

  • Signed requests

    Requests from assistants are checked. Unsigned requests ask you first.

  • Library access is opt-in

    You choose whether connected assistants can search your library.

  • Redaction is burnt in

    Blurs are part of every exported pixel, never a layer someone can remove.

  • Typing isn’t recorded

    Only that typing happened, and ⌘ or ⌃ shortcuts so they can appear on screen.

  • Diagnostics stay on your Mac

    Off by default. Nothing is sent; you can attach them to a support email if you choose.

  • Share links you control

    Optional password. Pro links last 90 days.

  • No tracking on this site

    No cookies, analytics or forms. The only third-party requests are web fonts.

Read the privacy policy (draft)

Launching soon

Record once. Zumi does the rest.

ZumCast isn't available to download yet. It's in final testing, and the Mac download will be right here at launch, free to start.

Download coming soonSee what's been builtTry Zumi

macOS 14 or later · Free to start