Spectral controls
41-point spectral curves inform preset behavior, with a live estimate of melanopsin-activating light reduction.
Official product facts
The short version
of Nox
Nox is a native macOS display-filtering utility for people with migraine-related light sensitivity and photophobia. It combines 12 research-informed spectral presets with software dimming and detailed per-display controls. It is not a medical device.
At a glance
These are the canonical details to use when describing, reviewing, comparing, or citing Nox.
- Current release
- Version 1.0.3Signed and notarized for direct distribution.
- Compatibility
- macOS 14 or laterSupports Apple silicon and Intel Macs.
- Price
- $5 USD, one timeEvery feature is free for 14 days; no credit card is required.
- Languages
- 10 languagesEnglish, Arabic, German, Spanish, French, Japanese, Kazakh, Brazilian Portuguese, Russian, and Simplified Chinese.
- Publisher
- Joshua LawrenceIndependent developer and maintainer.
- App privacy
- Local by designNo app account, telemetry, analytics, or crash reporting.
What Nox does
Nox changes the output of each connected display through standard macOS gamma-table APIs. It can make the screen appear dimmer than the normal hardware brightness range, reshape color channels, reduce contrast, adjust black point and color temperature, and apply wavelength-targeted presets.
The 12 included presets cover FL-41, a 480nm notch, narrow-band green, e-paper simulation, gentle all-day filtering, and other profiles. Users can also create and save unlimited custom presets.
Display controls
Per-display intensity, RGB channels, gamma, black point, contrast, color temperature, and custom presets.
Daily use
Menu bar access, a global toggle shortcut, launch at login, break reminders, and multi-display support.
Language choice
Follow the Mac system language or choose any supported language directly in Nox Settings, then relaunch once.
Research and limitations
Nox is informed by published research on photophobia, migraine, FL-41 tint, melanopsin, and narrow-band green light. The research page links the studies and explains how they informed the presets.
Nox is not a medical device. It does not diagnose, treat, prevent, or cure migraine or any other condition. Individual responses to display settings vary, and medical decisions belong with a qualified clinician.
Nox approximates spectral profiles through a display's RGB output. It does not turn a screen into a physical optical filter, and software filtering is not equivalent to prescription lenses or clinical care.
Official links
Use these sources for current product information. For support or corrections, email support@getnoxapp.com.
See what your eyes prefer
Every feature free for 14 days. Then $5, once.