Nox: White Noise & Sleep Timer

Nox is your calm, layered soundscape for deep sleep, focus, and relaxation - completely free to start, with zero ads, ever.

FREE, TRULY FREE
No account. No trial countdown. No ads anywhere. Mix up to 2 sounds at once and explore all 30 tracks from the moment you open the app.

30 IMMERSIVE SOUNDS, 6 CATEGORIES
• Nature & Weather - rain, thunderstorms, wind, snow
• Water & Sea - ocean waves, streams, waterfalls
• Algorithmic Noise - white, pink, brown, green noise
• Focus & Place - coffee shops, trains, libraries
• Tonal & Freque
• Tonal & Frequencies - 432Hz, focus tones, binaural tones
• Night & Atmosphere - crickets, campfire, purring cat

BUILT FOR REAL SLEEP
• Smart sleep timer with a gentle fade-out, so you're never jolted awake
• Free daily bedtime reminder to help you build a consistent wind-down routine
• Beautiful light and dark themes, designed for daytime focus and nighttime calm alike

UNLOCK THE FULL NIGHT - ONE TIME, FOREVER
A single one-time purchase (never a subscription) unlocks:
• Mix up to 6 sounds at once
• Play through the night - lock screen and background playback
• Custom sleep timer up to 2 hours, with smart fade-out
• All 9 ready-made atmospheres, including Midnight Cabin and Deep Space Focus
• Nightstand mode - a burn-in-safe bedside clock
• Unlimited saved mixes

PRIVACY BY DESIGN
Nox doesn't ask for your email, doesn't track you, and doesn't sell your data - because it never collects any in the first place. Everything stays on your device.

Whether you're drifting off to rain on a tent, studying to brown noise, or just need a moment of calm, Nox is built to disappear into the background and let you focus on what matters - sleep.