One developer,
one useful app

Who makes Nox

Nox is built and maintained by Joshua Lawrence, an independent software developer. There is no company behind it, no growth team, and no subscription department. When you email support@getnoxapp.com, the person who wrote the code reads it and answers.

That size is a feature. Nox stays small, native, and focused on one job: giving light-sensitive people real control over the light their Mac emits.

Why it exists

Nox exists because my migraine glasses scratched. The tinted lenses that actually helped cost about $400 a pair, and the coatings scratch easily; every new scratch sat right in front of eyes that already hurt. Facing yet another replacement, I looked at the screen instead. Most of the light that hurt was coming from the display anyway, and software does not scratch.

So I built the filter into the Mac itself: dimming that goes below the hardware floor, black point and contrast control, per-channel color adjustment, and 12 presets grounded in published research on photophobia, including FL-41, narrow-band green, and a 480nm notch filter. The same filtering principles as the $400 lenses, applied at the source, for $5 instead.

The standards it is held to

• Every scientific claim cites its source. The studies behind the presets are listed with DOIs on the research page and in every article. If a claim cannot be cited, it does not ship.
• Nox is not a medical device. It does not diagnose, treat, or cure anything. It is a display utility informed by research. Talk to your physician about migraine management; try Nox to make your screen more comfortable.
• The trial is the pitch. Displays and eyes vary. Fourteen days, every feature, no credit card. If it helps, it costs $5 once.
• It respects your machine. Nox runs locally, requires no account, and restores your display the moment you quit it. Details in the privacy policy.

Get in touch

Questions, bug reports, preset ideas, or a note about what your eyes need that Nox does not do yet: support@getnoxapp.com. Feedback from people who actually live with light sensitivity shapes what gets built next.