# EchoMeter

> Local room echo estimates and before/after comparisons.

Canonical page: [https://chrome-stats.com/d/com.quietframe.echometer](https://chrome-stats.com/d/com.quietframe.echometer)

## Overview

- **ID:** `com.quietframe.echometer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** BROOKS CONSTRUCTION SOLUTIONS LTD
- **Category:** TOOLS
- **Downloads:** 6
- **Version:** 1.0.0
- **Last updated:** 2026-07-29
- **First published:** 2026-07-29
- **Publisher country:** GB
- **Size:** 3.50 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.quietframe.echometer)
- **Privacy policy:** [https://doc-hosting.flycricket.io/echometer-privacy-policy/0826b56c-4cd0-4862-abc6-02338689ef55/privacy](https://doc-hosting.flycricket.io/echometer-privacy-policy/0826b56c-4cd0-4862-abc6-02338689ef55/privacy)

## Description

EchoMeter is a fully offline Android app for approximate room sound decay estimates and before/after acoustic comparisons.<br><br>Important: EchoMeter is not a certified sound level meter and does not replace professional RT60 measurements. Results are meant for repeatable relative comparisons on the same device and at the same room position.<br><br>What you can do:<br>• Guided test flow with setup, measurement point selection, clap or safe test impulse, and a live level indicator<br>• PCM capture via microphone, local WAV saving, and WAV import through the system file picker<br>• RMS envelope, background dBFS, peak, SNR, approximate decay time, and quality score<br>• Automatic rejection of clipping, weak signal, high background noise, and insufficient SNR<br>• Room profiles, measurement point layout, and test history<br>• Compare two accepted tests from the same point with a relative improvement percentage<br>• Local recommendations based on room shape, size, purpose, and the latest test<br>• Export analysis to PDF and room layout to PNG<br>• Versioned JSON backup with validation plus merge/replace strategies<br>• Light/dark theme, Dynamic Color, metric and imperial units, onboarding, and search<br><br>Privacy:<br>• No backend, accounts, analytics, ads, or in-app purchases<br>• No INTERNET permission — data never leaves the device<br>• RECORD_AUDIO is requested only right before recording

## Rankings

- #2,928,958 — Overall

## Permissions and access

### Permissions

- `android.permission.RECORD_AUDIO`
- `com.android.vending.CHECK_LICENSE`
- `com.quietframe.echometer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.quietframe.echometer)