Dim external displays in software with Mac keyboard shortcuts, a floating level indicator and a click-through night shade. Your monitor’s physical backlight stays unchanged.
A calmer screen, right from your keyboard.
Adjust a software dimming level from the menu bar or keyboard, including a click-through night shade. Physical backlight is unchanged.
Zero reaching behind panels. Zero physical buttons. Just pure, effortless brightness control.
Adjust screen brightness instantly using ⌘ ⌥ ↑ (Brighten) & ⌘ ⌥ ↓ (Dim), or ⌥ F1 / F2. Works over HDMI, DisplayPort, USB-C, and Thunderbolt docks.
Sub-Zero mode adds a click-through software shade for comfortable late-night viewing, with control down to a 1% app level.
Instant menu bar access with dynamic Sequoia glass styling. Calibrate dual and triple displays in one click with synchronized brightness.
A floating bezel shows the current display name and brightness level when you use a shortcut.
Enjoy full brightness controls for 3 days completely free. Keep forever with a single one-time Lifetime Pro purchase. Apple Family Sharing supported, no recurring monthly fees.
Current App Store version: 1.0. See the App Store listing for the latest release notes, device compatibility and local availability.
View current App Store details →Step-by-step troubleshooting for Mac mini, Mac Studio, and MacBook external displays:
Fix Apple brightness keys not working on Dell UltraSharp monitors over HDMI & USB-C.
Learn how Sub-Zero optical dimming can reduce screen glare in a dark room.
Learn how automated 20-20-20 eye rests and workspace lighting support regular screen breaks.