# .shush — Sleep & Focus Noise Machine

> Adaptive sound machine for sleep, focus, and tinnitus relief. (iPhone/iPad app by David Bennett.)

- Source: https://appshunter.io/ios/app/shush/id6759536211 (this page in markdown: same URL + `.md`)
- Developer: [David Bennett](https://appshunter.io/developer/1879346992)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 3 MB
- Languages: American English
- Released: 2026-02-24
- Data updated: 2026-08-19
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/shush/id6759536211/reviews.md

## What is .shush?

Shush the noise.

Every noise app fights your room. Shush works with it. Quieter sound. Deeper sleep.

WHAT MAKES SHUSH DIFFERENT

• Works With Your Room, Not Against It
Shush listens to your space and identifies the frequencies already there — HVAC hum, traffic, fans, appliances. Then it only generates what's missing. The result: full spectrum sound at lower volume, because your room is doing some of the work. No other noise app does this.

• Helps You Fall Asleep, Then Gets Out of the Way
Research shows broadband noise helps you fall asleep 38% faster. But the same research shows continuous noise all night costs you up to 19 minutes of REM sleep. .shush's smart timer helps you drift off, gently fades, then stops — so your brain can rest properly.

• Synthesized in Real Time. No Loops. Ever.
Every moment is mathematically unique. No recordings, no samples, no repeat points. Generated live using Apple's professional audio framework at 32-bit float. Your brain can't latch onto a pattern because there isn't one.

• Adapts to Your Device
.shush detects whether you're using iPhone speakers, headphones, or Bluetooth and optimizes the output for each. Warm and full on small speakers. Deep and rich in headphones. The same audio can't sound great everywhere — so we adapt.

• Tinnitus Notch Therapy
Match your tinnitus pitch for each ear independently. Set the filter width. The app removes those frequencies from the noise, based on clinical notched sound therapy research. A genuine therapeutic tool, not a preset.

FEATURES

Four noise types: brown, pink, green, white — all synthesized, never looped
Smart sleep timer with gentle fade (research-backed approach to protect REM)
Room acoustic analysis and spectral compensation
Tinnitus frequency finder and per-ear notch filter
Guided breathing (4-7-8, box, calm, relax)
Automatic device detection and optimization
Smooth tone control (never harsh)
Background audio
Dark and light modes
No ads, ever

WHY .SHUSH EXISTS

A 2026 Penn Medicine study found that continuous pink noise at typical volume reduced REM sleep by 19 minutes per night — over 60 hours of lost REM per year. Every noise app on the market generates the same full broadband signal regardless of your room, forcing you to turn it up louder to compensate. Louder noise means worse sleep.

Shush takes a different approach. By reading your room's existing sound and only adding what's missing, it achieves effective coverage at significantly lower volume. Sound when you need it. Silence when you don't.

PERFECT FOR

Sleep — fall asleep faster with low-level broadband that fades out to protect your REM
Focus — block distractions and enter flow state
Tinnitus — clinical notch therapy with per-ear frequency matching
Baby Sleep — lower volume by design, with AAP-safe guidelines built in
Travel — every hotel room sounds different, .shush adapts
Relaxation — guided breathing paired with gentle noise to wind down

BUILT DIFFERENT

Shush uses vDSP Accelerate, Apple's professional signal processing framework. Every sample is generated using mathematically precise algorithms. Stereo channels are independently generated and decorrelated for natural spatial width. Processing is hardware-accelerated for minimal battery impact.

Sound, shaped for you.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Use: https://shushapps.com/terms
Privacy: https://shushapps.com/privacy

## Key features

- Real-time synthesized soundscapes
- Room acoustic analysis
- Smart sleep timer
- Tinnitus notch therapy
- Guided breathing exercises
- Adaptive audio optimization

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Shush Premium | $0.99 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/shush/id6759536211/reviews.md

### 5/5 — Obsessed

*2026-07-31*

Been using this every night on the 45 min timer (Brown noise) to fall asleep - couldn’t sleep without it now

## Frequently asked questions about .shush

### Does .shush have ads?

No, .shush is ad-free, allowing for an uninterrupted experience.

### What is the subscription cost for .shush Premium?

.shush Premium is available for $0.99 per month and includes a 7-day free trial.

### How does .shush help with sleep?

.shush uses synthesized broadband noise to help you fall asleep faster and features a smart timer that gently fades out to protect REM sleep.

### Can .shush help with tinnitus?

Yes, .shush offers Tinnitus Notch Therapy, allowing you to match your tinnitus pitch for each ear independently and filter out those frequencies.

### What noise types does .shush offer?

.shush offers four synthesized noise types: brown, pink, green, and white, all generated in real-time without loops.

### On which devices can I use .shush?

.shush is supported on iPhone and iPad devices.

### How often is .shush updated?

The latest version, 1.2.8, was released on May 15, 2026, indicating regular updates to improve functionality and performance.

### What is the age rating for .shush?

.shush has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 1.3 — 2026-08-03

UI update

### 1.2.9 — 2026-08-03

Room analysis update
Signature sound #2
Bug fixes

-Coming soon- CarPlay V1

### 1.2.8 — 2026-05-15

Shush sound series - Cabin. Scientifically shaped noise, tuned to the frequencies that mask and relax.

### 1.2.7 — 2026-05-04

Room aware update

### 1.2.6 — 2026-03-28

UX update

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## Related topics

[noise machine shush](https://appshunter.io/ios/topics/noise-machine-shush)

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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 2026-08-19.*