Mac App Store menu-bar display helper

DisplayHelper

A quiet menu-bar app for mirrored MacBook display setups.

Blackout Keep the built-in MacBook display dark while mirroring to an external monitor.

Controls Mirror, dim, sleep, display levels, and shortcuts from the menu bar.

Local No account, no analytics, no tracking, and no Dock window.

Mac App Store edition No account No analytics Menu bar only

What is it?

Display controls for mirrored MacBooks.

Auto Blackout Keeps the built-in MacBook display dark while it mirrors an external display.
Display controls Switch mirroring, dim displays until key press, sleep the Mac, and adjust display brightness or contrast from the menu bar.
Keyboard shortcuts Assign shortcuts for mirroring, dimming, and sleep.
Start at Login Launch DisplayHelper automatically when you sign in.
Privacy basics No account, no analytics, no automatic reports, and no Dock window.

What's good about it?

Only blacks out when it should dark when mirrored, normal when the MacBook screen is part of your workspace
Fast everyday actions switch mirroring, dim until key press, sleep, adjust levels, and open common settings from one menu
Local-first by default settings stay on your Mac, feedback opens as a reviewable email draft, and there is no analytics SDK

For desk setups made for MacBooks that spend real time connected to an external display

For quick control the main experience is the menu bar, with focused dialogs only when needed

For App Store updates install and update through the Mac App Store

How to get it

macOS 13.0 or later Apple Silicon + Intel

Available on the Mac App Store.

Mac App Store Support Privacy EULA