Lumino is described as 'Mac utility that automatically controls the brightness of connected external displays based on ambient light. It uses the built-in light sensor of supported Macs and works with DDC/CI when available, with fallback options for displays that don’t fully support' and is an app in the system & hardware category. There are seven alternatives to Lumino for Mac. The best Lumino alternative is Dimly, which is both free and Open Source. Other great apps like Lumino are MonitorControl, Brightintosh, Lunar and DisplayBuddy.
Open-source macOS menu utility for unified brightness, blackout, and sleep control of external monitors, using hybrid DDC/CI and software overlays, per-display settings, custom profiles, hotkeys, panic shortcut, privacy by design, and secure signed builds.
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BrightIntosh is lightweight, works system-wide, has optional launch-at-login functionality and includes a global hotkey to toggle the extra brightness.
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DisplayBuddy lets you control external displays connected to your Mac right from your menu bar! No need to touch your clunky monitor buttons!
