Nox

Nox is a native macOS menu bar app for light-sensitive users who need more display control than Night Shift. It works across applications and connected displays, providing adjustable tint, dimming, black point, contrast, grayscale, color temperature, gamma, and individual color channels.

Choose from 12 starting presets—including rose, green, low-blue, reading, evening, and grayscale—or create and save a custom configuration. A global keyboard shortcut makes it easy to compare the filtered and unfiltered display, and Nox restores the normal display gamma when it quits.

Nox runs on macOS 14 or later and includes a full-featured 14-day trial. A lifetime license costs $5 with no subscription. Nox is a display customization utility, not a medical device.