Sereno: Sleep Sound Machine

Optimized for iPhone Duo. Built with the latest SDK, the app fills the entire inner display and automatically adjusts its layout whether the device is folded or open. Sereno turns your iPhone into a sleep sound machine: layer rain, ocean, fire, fans and white, pink or brown noise, and set each layer's volume to build your own mix. Nature sounds are real field recordings that reshuffle as you listen — never a fixed loop — and 1000+ ready-made blends give you a place to start. A sleep timer fades out gently, a sunrise wake-up greets you with birdsong, and playback keeps going offline and on the lock screen. — DOZENS OF SOUNDS, 1000+ BLENDS — Nature and ambient sounds are real field recordings, re-sequenced at random as you listen, while colored noise is generated live on your device. Start with dozens of living sounds — colored noise (white, pink, brown), rain, ocean, wind, streams, fire, night crickets, fans, and more — then layer and tune them into over 1000 unique soundscapes. Every play takes a fresh path through the recordings. — UNLIMITED MIXING — Layer as many sounds as you like. Set the volume, balance, and EQ of every track to build your perfect mix — thunder over a crackling fire, rain on a tent, a fan behind soft brown noise. — EVERY SCENARIO — Ready-made scenes like Rainy Night, Deep Sleep, Steady Focus, Study Session, Meditation and Red-Eye Flight. Save and name your own. — GENTLE SLEEP TOOLS — A sleep timer that fades out softly instead of cutting off, plus a sunrise wake-up that gently brings in birdsong at the time you choose. — FOCUS — Steady brown and pink noise gives you an even background sound for work, reading, and study, with dedicated focus scenes. — MADE TO FEEL CALM — A serene, dark design with slow, gentle motion and soft color themes. Background playback, lock-screen controls, and a full-screen night view that dims the display. — PRIVATE BY DESIGN — No tracking, no ads, no account, no data collected. Everything stays on your device. Some sounds, scenes, and features are unlocked with a one-time in-app purchase. No ads. No account. Works fully offline.