Luna is a tiny filter that warms your phone the way candlelight warms a room. No more 2 a.m. glare. No tracking. No subscription. One-time, $6.99, lifetime.
We’re not building another app. We’re building the one filter you’ll keep — and never think about again.
— Mira, founder · prev. iOS at a sleep-tracking company
Most phones drop to about 4 nits at minimum. Candlelight is closer to 1. The brightness gap between “dark mode” and actually-dark is where your evenings go missing.
Your eyes have a third type of cell — ipRGC — that listens for blue light specifically. It tells your brain whether it’s noon or 9pm. Phones lie to it, every night.
Wavelengths above 620nm barely register on those cells. Astronomers, submariners, and night nurses have used red light for a century. Your phone can, too.
Beta testers slept on average 38 minutes earlier in the first two weeks. Not because Luna nags. Because the screen stops feeling like a fluorescent ceiling.
Three tones — amber, red, deep red — and a continuous strength slider. Preview your photos with the filter applied before you commit. No mystery, no oversaturated “night mode.”
Save your favourite combinations as modes. Switch with one tap from the lock screen, the home widget, or your phone’s Control Centre. Or let the schedule do it for you.
Luna knows where the sun is. Set it once and forget. Or pick exact times. Or use a manual switch — we don’t care how you sleep, only that you do.
Luna ships with one network permission: checking for updates. That’s it. We don’t know when you sleep, what you read, or that you exist. We make better software because we don’t have a dashboard telling us not to.
100 people get founders’ pricing, lifetime updates, and a thank-you in the credits. When v1 ships, the price triples and stays there.
SCIENCE
A short field guide to ipRGCs, melatonin, and the wavelength that runs your sleep — without the supplement-store pseudoscience.
FIELD NOTES
Observatories have used deep red light since the 1940s. The reasoning is older — and it's the entire technical foundation of Luna.
BUILD LOG
Every operating system gets minimum brightness wrong. Here's what we ship instead, and why it took four prototypes to get there.
$6.99. One time. Refunded automatically if we don’t ship by year-end. The internet’s least scary checkout.
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