macOS utility · Apple Silicon & Intel

Your monitor isn't too small.

It's just stuck in one layout.

Fullscreen that stays where you put it. Independent Spaces. Workspaces you design. ScreenBoundary unlocks display setups macOS doesn't include, with no extra hardware.

Unlock Your Display ▶ Watch the 20-sec demo

✓ One-time purchase ✓ macOS 13+ ✓ Apple Silicon & Intel ✓ No extra hardware

Cracked screen? →

ScreenBoundary — live demo
A short story

“I bought a 34-inch ultrawide.”

It looked incredible.

“Then I pressed fullscreen.”

And my whole 34 inches disappeared into one window.

“So I figured I needed a second monitor.”

More money. More desk. More cables.

I didn't.

“I drew two zones. I clicked Enable.”

Now one half can go fullscreen, and the other half keeps working.

Video9:41
fullscreen
Code9:41

10-second demo: draw zones, click Enable, then fullscreen one half while the other stays live.

You already own the pixels.

“Then something unexpected happened.”

I tried it on my MacBook. One small screen became a large workspace, a focused side panel, and a place for music, all at the same time.

I'd accidentally invented a workflow I didn't know I wanted.

MacBook: one screen splits into a couple of stacked workspaces.
Stop organizing windows. Start designing workspaces.

Build the layout your work actually needs.

Draw the spaces you want and each one behaves like its own display, not just another window. A few layouts people build:

Focus

One large workspace, one calm side panel. Editor center stage, docs and chat tucked beside it.

Command Center

One main workspace with two stacked companions. Charts up front, orders and news always in view.

Studio

Built for creative work. Big canvas, with layers, assets and a live preview around it.

Research

Reading, notes and references, side by side. No more window juggling.

Broadcast

Game in one workspace. OBS, chat and monitoring in another.

Dual

A clean two-display split. The classic, in 30 seconds.

These are layouts you draw yourself. Start from one and make it yours.

“And if your screen is cracked?”

Draw around the broken glass. The parts that still work become real, independent displays, for the price of dinner, not a $300 to $600 repair.

Most of those pixels still work. And you already paid for them.

Rescue a cracked screen →
Here's why it works

It isn't a window manager.

Window managers move windows around one screen. ScreenBoundary changes how macOS sees your display, so every workspace gets what window managers can't give it:

  • Native fullscreen, per workspace
  • Independent Spaces
  • Its own menu bar
  • Cleaner screen sharing: share one workspace, not everything
  • Apps remember where they belong

Because as far as macOS is concerned, they're real displays.

System Settings — Displays
1
2
3
Workspace 1Real display
Workspace 2Real display
Workspace 3Real display
How it compares

One job, done properly.

BetterDisplay is a powerful general-purpose tool, and window managers are great at arranging windows. ScreenBoundary does one thing: turn your display into real workspaces, in about 30 seconds.

Comparison
ScreenBoundary Window managers BetterDisplay
Native fullscreen per workspace Pro, manual
Independent Spaces per workspace Pro, manual
Own menu bar per workspace Pro, manual
Share one workspace, not the screen Pro, manual
~30-second visual setup n/a general
Auto-revert failsafe
One-time from $12.99 free / varies

Not on the Mac App Store. Signed with Developer ID and notarized, so it opens without warnings.

The math

You already own the pixels.

Why buy another monitor you don't need? A second display costs hundreds, takes desk space, and needs another cable. ScreenBoundary just unlocks the one you already own, for $12.99.

Unlock Your Display
A second 27″ monitor
$300+
More desk space. More cables. Another power brick.
or
ScreenBoundary
$12.99
Pixels you already own. 30-second setup. 30-day refund.
How it works

Setup takes about 30 seconds.

01

Draw the parts of your display you want to use.

02

Click Enable.

03

Start working.

If anything looks off, ScreenBoundary restores everything automatically, the same countdown macOS shows when you change resolution. No risk, no emergency-shortcut homework.

04 — Questions
Questions

Everything you'd ask before buying.

Is this a window manager?

No. Window managers arrange windows inside one display. ScreenBoundary creates additional real displays that macOS recognizes in System Settings.

Are “workspaces” a feature in the app?

They're layouts you draw yourself. Make two zones or six, and each becomes a real display. The names above are just popular setups to start from.

Will fullscreen really stay in one zone?

Yes — native fullscreen targets that zone's display, not the whole panel.

Does it work on Apple Silicon and Intel?

Both. macOS 13 Ventura and later. On Apple Silicon the per-zone capture is hardware-accelerated, up to 60fps.

How many Macs per license?

Personal covers 1 Mac, Home covers up to 3. If you move to a new Mac, use Deactivate this Mac in Settings — it frees the seat instantly so you can activate on the new machine. No support email, no forms.

Does it work offline?

Yes. The app activates online once, then works offline for up to 14 days between silent license revalidations. The check happens in the background — you won't notice it.

Any performance hit?

Each zone is captured and composited at up to 60fps. On Apple Silicon it's hardware-accelerated and negligible; on Intel it's light enough for all-day use.

Why isn't it on the App Store?

It uses a private macOS display API the App Store doesn't allow. It's signed with a registered Developer ID and notarized, so it opens cleanly on first launch.

Screen sharing?

You share a single zone's display in Zoom or Meet — usually exactly what you want. The rest of your screen stays private.

Privacy?

No account, no analytics. The only network call is license activation/validation with Lemon Squeezy.

05 — Pricing
Launch price

One-time. Yours forever.

Price goes back up after launch — no subscription, ever.

Personal
1 Mac
$12.99

→ $14.99 after launch

Buy — $12.99
Best value
Home
Up to 3 Macs
$19.99

→ $24.99 after launch

Buy — $19.99

Instant delivery by email: download + license key.

Both include
  • Unlimited zones & virtual displays
  • Its own menu bar, Spaces & fullscreen per zone
  • Up to 60fps capture, hardware-accelerated on Apple Silicon
  • Silent over-the-air updates (Sparkle)
  • No account, no iCloud, no data collected
30-day money-back guarantee

Doesn't work on your setup? Email us and you'll get a full refund.

macOS 13+ · Intel & Apple Silicon · .dmg download

Stop adapting to your monitor.

Make your monitor adapt to you.

Get ScreenBoundary

One-time · 30-day money-back guarantee · Instant delivery by email.