v1.0.0 Now Available
The offline, privacy-first audio engine. Infinite mixing, native Android integration, and zero subscriptions.
Most sleep apps are user-hostile. They require monthly subscriptions, track your location, and stream audio that drains your data plan.
StarNoct is different. We built a utility, not a service. You download it once, and it works forever. No login required. No servers to connect to.
Layer up to 10 simultaneous sounds. Create complex soundscapes like “Cabin in a Thunderstorm” or “Camping by the River.”
Precision Volume Control • Smart Mixing Limiter • Gapless Looping
We don’t just play MP3s. StarNoct uses a custom Headroom Calculator to prevent digital clipping when you stack loud sounds.
Our volume sliders use a Square Law (x²) curve. This mimics how the human ear actually perceives loudness, giving you granular control at low volumes where it matters most for sleep.
Heavy Downpour, Rolling Thunder, Rain on Tent, Tin Roof.
Babbling Brook, Roaring Waterfall, Ocean Waves, Distant Surf.
Night Forest, Crickets, Owls, Wind through Pines.
Mathematically generated Brown, Pink, and White noise.
Airplane Cabin, Box Fan, Space Hum, Train Ride.
Campfire, Crackling Hearth, Distant Embers.
Built-in 4-7-8 Breathing Guide.
Features Haptic Feedback Guidance. The phone vibrates gently at each phase (Inhale, Hold, Exhale), so you can perform the exercise with your eyes closed.
Other apps keep your screen awake or run heavy analytics threads. StarNoct requests a “Partial Wake Lock”—keeping only the low-power audio chip running while the rest of your phone sleeps.
We even include a built-in Battery Optimization Checker to ensure your specific Android model doesn’t kill the app in the background.
Foreground Service Technology
Android 15 Ready
JavaScript timers fail when phones enter “Doze Mode.” StarNoct injects a native AlarmManager Intent directly into the OS kernel.
When the timer hits 00:00, the audio stops. Guaranteed. No waking up at 3 AM to a thunderstorm because the app crashed.
Too tired to squint? Toggle between Compact, Medium, and Large cards for easy tapping.
The interface uses true black and deep indigo gradients to minimize blue light exposure.
Controls lock while scrolling so you don’t accidentally blast the volume.
We are tired of “free” apps that cost your privacy. StarNoct contains zero analytics.
We don’t know where you sleep.
We don’t know which sounds you play.
The app works perfectly in Airplane Mode.
One Time Download. Lifetime of Sleep.