I scratched my $400 migraine glasses, so I built a Mac app as an alternative

I’ve lived with migraines and light sensitivity for more than 15 years. After scratching a pair of specialized migraine glasses (non-prescription) that cost nearly $400, as a builder and DIY-er I thought, "It has to be cheaper to just make my own."

Then I realized that most of the time, I didn’t need another pair of glasses. I needed something for the display I spent hours looking at every day.

That became Nox, a native Mac menu-bar app for light-sensitive users.

What I built

Nox provides 12 adjustable display presets, including FL-41-inspired tinting, warmer modes, grayscale, and other research-informed spectral profiles. It also supports software dimming below the Mac’s normal minimum, per-display controls, automatic scheduling, and break reminders.

One of my favorite presets is E-Paper mode. It turns the display grayscale and adjusts its gamma and contrast to create a calmer, paper-inspired reading experience. It can’t turn an emissive screen into a reflective e-ink panel, but it provides a useful approximation without buying a specialized monitor.

The technically interesting part was translating physical lens-filtering curves into something a display can produce. Research describes filtration across visible wavelengths, but a display ultimately gives me red, green, and blue channels to control. Nox models the target curve and converts it into adjustments those channels can approximate.

Software cannot perfectly reproduce physical lenses, and Nox only affects the display, not sunlight or room lighting. It isn’t a replacement for migraine glasses or a medical treatment. It’s a more affordable and adjustable tool for one specific source of light.

The business experiment

Nox is currently available for an introductory price of $5 after a full 14-day trial. On August 11, the lifetime price increases to $9.99. There’s no subscription or account requirement.

The product is still early, with only a couple of paying customers. My current challenge is finding the light-sensitive Mac users who genuinely need it.

I’d appreciate feedback from other founders:

1. Would you lead with the story about migraine glasses, the E-Paper mode, or the additional control over Night Shift?
2. Does $9.99 feel appropriate for a specialized Mac utility?
3. How would you reach such a specific audience without making medical claims?

Nox is available at getnoxapp.com.

Nox is a display utility, not a medical device. It does not diagnose, treat, prevent, or cure migraine or any other condition.