# Quietude: Noise Focus Timer — Silence Training for Deep Work

> Silence Training for Deep Work (iPhone/iPad app by Ilia Usatov.)

- Source: https://appshunter.io/ios/app/quietude-noise-focus-timer/id6758955377 (this page in markdown: same URL + `.md`)
- Developer: [Ilia Usatov](https://appshunter.io/developer/1868442271)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 40 MB
- Languages: American English, Arabic, Finnish, French (France), German (Germany), Hindi, Japanese, Korean, Polish, Brazilian Portuguese and 7 more
- Released: 2026-02-28
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/quietude-noise-focus-timer/id6758955377/reviews.md

## What is Quietude?

Quietude is an acoustic sanctuary for your mind, built on the foundational principles of Calm Technology. In a world characterized by unprecedented levels of acoustic pollution and constant connectivity, your attention is your most fragile and valuable asset. Unlike aggressive productivity apps that punish you with jarring sirens for losing concentration, Quietude takes a fundamentally empathetic and physiological approach.

It utilizes your device's local microphone to intelligently monitor environmental decibel levels. When the ambient noise exceeds your custom personal threshold, the timer softly resets. This is not a failure; it is a gentle invitation to reclaim your quiet space and safeguard your mental energy.

BUILT FOR SENSITIVE BRAINS
If you live with ADHD, sensory processing sensitivity, autism, or simply navigate the overwhelming acoustic landscape of an open-plan office, you understand that noise isn't merely "annoying"—it actively hijacks your attention. Auditory overstimulation leads to rapid directed attention fatigue. Quietude provides a tangible, visual metric for the silence your nervous system requires to thrive, preventing sensory overload before it culminates in cognitive burnout.

THE SCIENCE OF SILENCE
Quietude is not just a timer; it is a neurobiological tool grounded in published academic research and cognitive psychology:
• Neurogenesis & Brain Plasticity: Groundbreaking research from Duke University (Kirste et al., 2013) demonstrates that exposure to 2 hours of daily, complete silence actively stimulates adult neurogenesis—the physical growth and differentiation of new, functional brain cells in the hippocampus, your brain's primary memory and learning center.
• Autonomic Reset & Cortisol Reduction: Constant background noise acts as a biological stressor, triggering the amygdala and initiating the systemic release of stress hormones. Clinical studies (Bernardi et al., 2006) show that brief pauses of pure silence act as an emergency brake for your nervous system, drastically lowering blood pressure, minute ventilation, and cortisol levels even more effectively than "relaxing" ambient music.
• Attention Restoration Theory (ART): Developed by environmental psychologists, ART posits that environments entirely free from demanding, urgent stimuli allow your exhausted executive control systems to rest. In the quiet, your brain shifts into its Default Mode Network (DMN), replenishing your natural, effortless capacity for deep focus and creative problem-solving.
• Find more information on our research page: https://apps.iliausatov.com/quietude/research

(Note: Quietude is a wellness and productivity tool. The aforementioned data are documented findings from peer-reviewed scientific studies and do not constitute medical claims or diagnostic advice).

Whether you need dedicated ADHD Support, a reliable Noise Tracker, or an effective Sensory Relief Tool, Quietude adapts to your neurobiological needs.

PRIVACY BY DESIGN
Psychological safety is a prerequisite for focus. Your silence is yours alone. No audio is ever recorded, saved, or transmitted to any cloud servers. All acoustic analysis is performed locally on your device, in real-time, and is strictly ephemeral.

Discover how the deliberate absence of noise becomes the ultimate presence of focus. Enter the quietude.

SUPPORT: support@iliausatov.com

Terms of Use: https://apps.iliausatov.com/quietude/terms-of-use
Privacy Policy: https://apps.iliausatov.com/quietude/privacy-policy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Quietude Pro Monthly | $1.99 | per month |
| Quietude Pro Yearly | $7.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime (early bird) | Free | one-time |
| Quietude Pro Lifetime | $24.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-03-03

Minor improvements and bug fixes for a better experience.

### 1.0.0 — 2026-02-28

No release notes.

## More apps by Ilia Usatov

- [Timefall: Visual ADHD Timer](https://appshunter.io/ios/app/timefall-visual-adhd-timer/id6757712804)
- [HabitVibe: Habit Tracker](https://appshunter.io/ios/app/habitvibe-habit-tracker/id6761813941)

All apps by Ilia Usatov: https://appshunter.io/developer/1868442271

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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 2026-07-09.*