Measure Your Soundproofing in 60 Seconds

Turn your iPhone into a sound isolation testing tool. Just a Bluetooth or AirPlay speaker — no special equipment.

Download on the App Store See How It Works
QuietScore results screen showing a Sound Isolation Score of 35 with a Good privacy rating

How It Works

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1. Place the Speaker

Put any Bluetooth or AirPlay speaker inside the room and set volume to 70–80%.

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2. Close the Door

The app measures sound with the door open, then again with it closed.

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3. Get Your Score

Instantly see your Sound Isolation Score with a privacy rating from Poor to Excellent.

Everything You Need

Professional-grade sound isolation measurement — right from your pocket.

📱

No Special Equipment

Just your iPhone and any Bluetooth or AirPlay speaker you already own.

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60-Second Test

Place the speaker, close the door, get your score. That simple.

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Any Wireless Speaker

Works with any Bluetooth or AirPlay speaker — no calibration needed.

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Professional PDF Reports

Generate detailed reports with frequency breakdown, scores, and recommendations.

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Track Improvements

Re-measure rooms over time to see if your soundproofing upgrades are working.

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Sound Leakage Scanner

Find exactly where sound leaks through your doors and windows.

What Your Score Means

Your Sound Isolation Score tells you how many decibels of sound your door or window blocks, weighted toward speech frequencies.

< 20

Poor

Speech clearly audible through the barrier

20–29

Moderate

Loud speech partially heard

30–39

Good

Speech faintly audible, not intelligible

≥ 40

Excellent

Complete speech privacy

The Sound Isolation Score is a practical estimate comparable to professional STC ratings, measured with your phone instead of lab equipment.

Simple Pricing

Start free. Upgrade when you need more.

Monthly Annual

Free

Get started with the basics

$0

$0

  • Sound Isolation Score
  • Privacy rating
  • Room saving & history
  • Retake measurements
Get Started
Most Popular

Home

Full measurement toolkit

$4.99 USD/mo

$3.17 USD/mo

$38 USD/yr billed annually · Save 36%

  • Everything in Free, plus:
  • Frequency analysis
  • Sound leakage scanner
  • Room notes & PDF report
Get Home

Studio

Advanced tools & raw data

$9.99 USD/mo

$6.42 USD/mo

$77 USD/yr billed annually · Save 36%

  • Everything in Home, plus:
  • External mic support
  • Advanced Mode (raw dB)
  • Per-measurement notes
  • Raw data in PDF reports
Get Studio

Business

Professional acoustic reports

$19.99 USD/mo

$12.42 USD/mo

$149 USD/yr billed annually · Save 38%

  • Everything in Studio, plus:
  • Your logo on reports
  • Multi-room reports
  • Custom metadata fields
Get Business

Prices shown in US dollars. Local pricing varies by App Store country — your final price is shown in the App Store at checkout.

Common Questions

Why do I need a Bluetooth or AirPlay speaker?
The app needs a sound source inside the room and a microphone outside. Your phone acts as the mic on one side, and the Bluetooth or AirPlay speaker plays test tones on the other side of the door.
How accurate is this compared to professional testing?
QuietScore gives a practical Sound Isolation Score comparable to professional STC ratings. It uses a 4-frequency measurement weighted toward speech privacy. For official building compliance, professional lab testing is still needed.
Can I measure walls or floors?
Currently QuietScore measures open/close barriers like doors and windows. Wall and floor measurement requires a different method and is planned for a future update.
Is my data uploaded anywhere?
No. All measurement data is stored locally on your device. We use privacy-friendly analytics (TelemetryDeck) that collects no personal information.

View all FAQ →

Ready to Test Your Soundproofing?

Download QuietScore and get your first Sound Isolation Score in under a minute.

Download on the App Store — Free