NEWZumi edits your recording from one sentence, on your Mac

Record once. Zumi does the rest.

The Mac screen recorder with an AI editor that runs on your Mac. Say what you want, see the plan on the timeline, press Apply. One take becomes a polished video, a vertical clip, a step-by-step guide and an interactive demo.

  • Free to start
  • macOS 14 or later
  • Works offline
  • Every edit is one Undo
Billing walkthrough· ZumCast Studio

Step 1: a raw screen recording with long pauses and a shaky cursor.

One take, three steps. Click a step to jump to it.

Five tools you juggle today

  • Auto-zoom
    recorder
  • Screenshot
    tool
  • Docs and
    guides
  • Interactive
    demos
  • AI video
    editor
ZumCastAll five in one Mac app

Meet Zumi

An editor that takes requests.

Say what you want in plain English. Zumi plans the edit, shows it on the timeline and waits for you. Nothing changes until you press Apply, and one Undo takes it all back.

  • “Cut the pauses.” Long gaps and fillers, gone.
  • “Make it vertical.” A 9:16 version with its own crop.
  • “Blur anything private.” Emails, keys and faces, found on your Mac.

Try the Zumi playgroundHow Zumi works

One take, seven outputs

Stop recording the same thing twice.

The video, the short clip, the docs and the demo all come from the same take. Click an output to see what you get.

One recording 1:52 · 9 clicks · 214 words Screen, camera, voice, clicks and keys

Output 1 of 7

Polished video

What you get

The full take, edited: zooms where you click, a smooth cursor, captions, and your intro and outro cards.

Formats

  • MP4
  • MOV
  • up to 4K60

How it's made

  • One click after recording
  • Zooms follow your clicks
  • Pauses are cut and captions added

Ready in seconds, on your Mac.

Without ZumCast7 exports across 4 appsAbout 3 hours (typical estimate)

With ZumCastOne take, one clickAll seven, made in seconds on your Mac

Every format

Vertical isn't the wide one squeezed.

Each version keeps its own crop and camera position, and captions move clear of app buttons on Shorts and Reels.

Features

Everything a demo needs.

Recording, editing, screenshots, branding and sharing, in one Mac app.

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.

How privacy works

Pricing

Start free. Pay once for Pro.

Basic

$0 free, no card needed

Unlimited recording and editing. Exports are limited and watermarked.

Pro LAUNCH PRICE

$49 once

$9 at launch for the first 100, then $19 for the next 100, then $49.

No subscription. Pay once. Yours to keep.

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.

macOS 14 or later · Free to start