water
Ocean Calm
01Waves and a low rumble
ocean_waves
· 0.75 brown
· 0.18 An ambient sound app for iOS
Sleep, layered.
Sonno blends procedural noise with field-recorded ambience — ocean waves under a brown rumble, rain against a quiet office. Mix your own. Save what works. Drift off.
14
Sounds
7
Soundscapes
∞
Mixes
Now Playing
22:47
Mix · 03 layers
Quiet harbour
Ocean Waves 75
Brown Noise 18
Room Tone 32
Sleep timer
45:00
§ 01 — The spectrum
Noise comes in colors.
Each color filters frequencies differently. White is even across the band. Brown drops the highs and rumbles. Violet sparkles up top. Pick the one that matches your night.
§ 02 — The library
Fourteen voices, one quiet room.
Six procedural noise generators. Eight field recordings — placed by category, designed to layer.
§ 03 — How it works
Stack sounds like film.
A mix in Sonno is just a stack of layers, each with its own volume curve. The result feels like a place — not a track.
layers · 01
01
Pick a foundation
Start with rolling waves, a forest at night, or a flat hush of gray noise. One sound is the bed everything else rests on.
layers · 02
02
Layer on top
Add a second sound — and a third — to the mix. Each layer has its own volume, so you can taste the balance to perfection.
layers · 03
03
Save and drift
Name the mix. Set a sleep timer. Sonno fades out gracefully and stops at the end. Tomorrow night, your room is right where you left it.
§ 04 — Pre-mixed
Soundscapes to start with.
Curated mixes for the moments that matter. Tap one, make it yours, save the result.
nature
French Garden
02Morning ambience
french_garden
· 0.70 pink
· 0.12 nature
Desert Wind
03Open sky, warm air
desert_wind
· 0.75 nature
Autumn Forest
04Night woods
autumn_forest
· 0.70 brown
· 0.12 nature
Snowy Forest
05Soft snow, hushed pines
snowy_forest
· 0.75 white
· 0.08 urban
Coworking
06Quiet office hum
office
· 0.55 room_tone
· 0.25 urban
Wood Workshop
07Sawdust and slow tools
wood_workshop
· 0.70 brown
· 0.10
§ 05 — Goodnight
Quiet enough to disappear into.
Sonno is a small, paid-once iOS app. No accounts, no subscriptions, no analytics. Just sound that gets out of the way.