Measure Your Soundproofing in 60 Seconds

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

Join the Beta See How It Works
35 Sound Isolation Score 0 50
Good

Solid-core door

How It Works

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1. Place the Speaker

Put any Bluetooth 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 speaker you already own.

⚡

60-Second Test

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

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Any Bluetooth Speaker

Works with any A2DP-compatible Bluetooth 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.

Free

Get started with the basics

$0

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

Full measurement toolkit

$4.99/mo

  • Everything in Free
  • Frequency analysis
  • Sound leakage scanner
  • PDF reports
  • External mic support
Get Premium

Business

Professional acoustic reports

$19.99/mo

  • Everything in Premium
  • Your logo on reports
  • Multi-room reports
  • Custom metadata fields
Get Business

Common Questions

Why do I need a Bluetooth 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 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.

Join the Beta — It's Free