# Calma Sleep Sounds White Noise — Brown noise mixer, rain & fan

> Brown noise mixer, rain & fan (iPhone/iPad app by MATEUSZ KOZŁOWSKI.)

- Source: https://appshunter.io/ios/app/calma-sleep-sounds-white-noise/id6761824923 (this page in markdown: same URL + `.md`)
- Developer: [MATEUSZ KOZŁOWSKI](https://appshunter.io/developer/1891665055)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 141 MB
- Languages: American English
- Released: 2026-04-22
- Data updated: 2026-11-05

## What is Calma Sleep Sounds White Noise?

Mix white noise, brown noise and rain sounds into your own sleep mix. Calma is an offline sleep sound mixer: layer several sounds at once, set each volume separately, save your mixes and let the sleep timer fade the sound out gradually.

Start free with 55 sounds, 3 layers at once and 5 saved mixes. PRO unlocks all 193 sounds and 6 layers with a one-time purchase. No subscription.

MAKE YOUR OWN SOUND MIX
Layer steady rain over brown noise, add a ceiling fan underneath and adjust every sound on its own. Save the mix and start the same one tomorrow night with a single tap.

193 SLEEP SOUNDS
• Noise: white noise, pink noise and brown noise.
• Rain sounds: light rain, steady rain, rain on a roof, thunderstorms.
• Nature sounds: ocean waves, forest streams, wind, crickets and birds.
• Fire: campfires and crackling fireplaces.
• Home and machines: ceiling fans, room fans, washing machine, hair dryer and vacuum hum, the white noise machine sounds many people fall asleep to.
• Travel and rooms: train cabin, ticking clock, quiet room.
• Music: soft piano and tuning frequencies (174, 396, 432 and 528 Hz).

WHITE NOISE FOR BABIES
A dedicated baby category with white noise, womb sounds, heartbeat, a lullaby music box, hair dryer and car-ride hum. Use your phone as a portable sound machine in the nursery, in the car or on a walk.

OFFLINE PLAYBACK
Every sound is stored in the app, so listening needs no streaming and works in airplane mode. No account needed.

SLEEP TIMER WITH FADE-OUT
Pick a duration and the timer lowers the volume of the whole mix gradually before it stops, instead of cutting the sound off.

BINAURAL BEATS AND BREATHING
Brainwave Lab plays binaural beats alongside your mix: pick a frequency and layer it under rain or noise. Stereo headphones recommended. Smart Descent (PRO) lowers the beat to 2 Hz over 20 minutes. A guided breathing animation, including the 4-7-8 pattern, is there for your evening wind-down before the mix starts.

NIGHT SKY RITUAL
Close the day by placing a star in your own night sky.

GOOD FOR
• Bedtime and naps
• Masking sounds from a noisy neighbour, street traffic or a snoring partner
• Focus, study and deep work
• Relaxation and meditation
• Travel: planes, trains and thin hotel walls

FREE AND PRO
Free, with no time limit: 55 sounds, 3 layers at once, 5 saved mixes, the sleep timer and the breathing exercise. The free version shows banner ads, and you can choose to watch an ad to unlock a PRO sound for a few hours.
PRO: all 193 sounds, 6 layers at once, 25 saved mixes, Smart Descent, the full Brainwave Lab range and no ads. One-time purchase, no subscription.

Calma is not a medical device. It cannot diagnose, treat, cure or prevent medical conditions. For medical advice, diagnosis or treatment, consult a healthcare professional.

Build your first mix tonight.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calma PRO Lifetime | $14.99 | one-time |
| Calma PRO Lifetime Launch | $12.99 | one-time |


## Is Calma Sleep Sounds White Noise safe?

Not enough ratings yet to assess Calma Sleep Sounds White Noise.

## Is Calma Sleep Sounds White Noise legit?

Calma Sleep Sounds White Noise appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Calma Sleep Sounds White Noise is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.2.3(28) — 2026-11-04

• New: When you play your first mix, Calma suggests a sleep timer so the sound fades out automatically.
• You can set a bedtime reminder after your first session, with a time suggested based on your evening listening.
• More reliable playback when a call, alarm, or voice assistant briefly interrupts the audio.
• Stability improvements.

### 1.2.1.27 — 2026-10-19

We’ve improved audio playback stability and fixed issues with dialogs and navigation. We’ve also made improvements to PRO purchases and restoring previous purchases.

### 1.2.1.25 — 2026-10-10

Make your evenings a little calmer:
• Start a ready-made sound mix with one tap.
• Pause, resume and adjust your sleep timer from the new playback bar.
• Enjoy smoother sound transitions and return to your last mix more easily.
• Improved stability, purchase restoration and privacy controls.

### 1.1.0.23 — 2026-09-13

• Continue last mix: Calma remembers your last mix and brings it back with one tap, even after you stopped it.
• Long-press the Calma icon to start your last mix right away, with its sleep timer if it had one.
• Undisturbed nights: no more offers popping up while sounds are playing, and playback resumes on its own after a short interruption.
• The sleep timer now works with everything: volume sliders respond while it counts down, and loading a saved mix no longer cancels it.
• New "Your week with Calma" card: how many nights and how much quiet you had last week.
• New setting "Play alongside other audio": keep your mix going under a podcast or music.
• Sounds unlocked with an ad now stay unlocked much longer and no longer look locked after reopening the app.
• Tapping the bedtime reminder now opens straight into your last mix.
• Better support for larger text, improved starter mixes and many stability fixes.

### 1.1.0.22 — 2026-08-26

• Night Sky is twice as big — 12 chapters and 36 constellations to uncover, up from 6 and 18.
• Look back through every constellation you have already completed, chapter by chapter.
• Constellation and chapter names are now translated in every supported language.
• More reliable purchase restore and clearer connection error messages.
• Better timing for in-app messages, so nothing interrupts a running session.
• Stability fixes across the mixer.

## Apps similar to Calma Sleep Sounds White Noise

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [StillSound: Noise Machine](https://appshunter.io/ios/app/stillsound-noise-machine/id6777607721) | — | Free | Health & Fitness |
| [Sleep & Focus Sounds - Waves](https://appshunter.io/ios/app/sleep-and-focus-sounds-waves/id6757762017) | — | Free | Health & Fitness |
| [Dozio: Sleep Sounds](https://appshunter.io/ios/app/dozio-sleep-sounds/id6793555437) | — | Free | Health & Fitness |
| [Muon - Sleep & Focus Sounds](https://appshunter.io/ios/app/muon-sleep-and-focus-sounds/id6766166811) | — | Free | Health & Fitness |
| [Noctune Sleep](https://appshunter.io/ios/app/noctune-sleep/id6761496785) | — | Free | Health & Fitness |
| [Susurrus: Sleep & White Noise](https://appshunter.io/ios/app/susurrus-sleep-and-white-noise/id6801876062) | — | Free | Health & Fitness |

## More apps by MATEUSZ KOZŁOWSKI

- [PayClear: Subscription Tracker](https://appshunter.io/ios/app/payclear-subscription-tracker/id6780266678)
- [Calma Color: Color by Number](https://appshunter.io/ios/app/calma-color-color-by-number/id6797218195)

All apps by MATEUSZ KOZŁOWSKI: https://appshunter.io/developer/1891665055

## Related topics

[calma](https://appshunter.io/ios/topics/calma)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-05.*