Calma Sounds logo - Sleep & Relax App

Brown noise app

A brown noise app with offline playback and custom mixes

Mix deep brown noise with rain or nature sounds for a background you control. Start with Calma’s free three-layer mixer on iPhone or Android, set each volume separately and use a fade-out sleep timer. Offline playback and an optional one-time PRO unlock mean no required recurring subscription.

Support better sleep

Brown noise can help create a more stable sound background for bedtime and a gentler transition into sleep.

Reduce distracting noise

Use a controlled audio layer to soften sudden sounds and create a calmer environment around you.

Play brown noise offline

Keep your chosen sounds available in the app and listen without continuous streaming. Check your mix before travelling, then use it without Wi-Fi or mobile data.

App preview

See the brown noise mixer inside Calma

Calma mobile app interface showing a list of sleep sounds and relaxation categories
Calma brown noise app interface for customizing brown noise for sleep and focus
Calma sleep sounds mixer interface
Calma sound mixer interface for creating custom brown noise mixes

Guides & Knowledge

Learn more about brown noise

FAQ

Brown noise app FAQ

Does Calma play brown noise offline?

Yes. Calma supports offline playback. Check that your chosen sounds are available in the app before disconnecting.

What is included in the free brown noise app?

The free version supports mixing up to three sound layers with individual volume controls. PRO is an optional one-time unlock for premium features and up to six layers; no recurring subscription is required.

What is a brown noise app?

A brown noise app generates deep, low-frequency sound similar to a strong waterfall, distant thunder, or a powerful fan. It's called "brown" noise after Robert Brown (Brownian motion), not the color. Brown noise emphasizes lower frequencies much more than white noise, making it sound deeper and more soothing.

Can brown noise help with sleep?

Many people use brown noise to make bedtime feel calmer and reduce the impact of distracting sounds in the environment.

Is Calma only for brown noise?

No. Calma also supports white noise, pink noise, nature sounds, sleep soundscapes and focus-oriented audio mixes, so you can shape the experience to your needs.

Does brown noise help with ADHD?

Responses vary. Research has found a small task-performance benefit from white and pink noise in some young people with ADHD, but the review found no eligible brown-noise studies. Brown noise is not an ADHD treatment.

Brown noise vs white noise β€” what's the difference?

White noise contains all frequencies at equal volume, producing a bright "static" or "hiss" sound. Brown noise rolls off steeply at higher frequencies, sounding much deeper and warmer β€” like the rumble of a waterfall or heavy rain on a window. Most adults prefer brown noise for sleep because it's less harsh on the ears during long exposure.

Hear brown noise before you download

Brown noise sample

Play at a comfortable volume and compare the sound with your own preferences.

Try layering it with rain sounds, or compare pink noise for a different texture.

Try Calma for sleep and everyday calm

Download Calma on Google Play and create a calmer sound environment with brown noise and personalized soundscapes.

What you get in Calma

190+ sounds, one flexible mixer

Build a soundscape for sleep, focus or a quieter break instead of settling for one fixed recording.

190+ sounds

Noise colors, rain, nature, water, ASMR, home ambience and more.

Up to 6 layers

Mix up to 3 sounds in the free version or 6 with PRO and set each volume separately.

Offline playback

All sounds are available offline immediately after installation. Use a fade-out sleep timer.

More than a sound list

Night Sky, bedtime reminders, Brainwave Lab and BreathSync help shape a personal routine.

Try Calma free

No account required. PRO is available as an optional one-time unlock β€” no recurring subscription required.

From the maker of Calma

More apps built the same way.

Private by design, useful offline and no extra subscription β€” the same philosophy behind Calma.