# Wow & Flutter Meter

> A tool that lets you analyse the wow and flutter of your cassette decks

Canonical page: [https://chrome-stats.com/d/com.sk.wowflutter](https://chrome-stats.com/d/com.sk.wowflutter)

## Overview

- **ID:** `com.sk.wowflutter`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** SK Corp Apps
- **Category:** TOOLS
- **Downloads:** 1,070
- **Version:** 1.5
- **Last updated:** 2025-09-29
- **First published:** 2025-07-31
- **Publisher country:** GB
- **Size:** 18 MB
- **Data as of:** 2026-03-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.sk.wowflutter)
- **Privacy policy:** [https://sites.google.com/view/wowfluttermeterprivacypolicy](https://sites.google.com/view/wowfluttermeterprivacypolicy)

## Description

<i>The first-ever wow &amp; flutter measurement tool built specifically for mobile devices.</i><br><br>No external gear and no special setup, just play your test tone into your phone’s mic.<br><br>For the first time, tape deck owners and Walkman collectors can now measure wow, flutter, and speed deviation with precision using only their Android device.<br><br><b>Real-time Frequency Detection</b><br>  • Automatically detects standard reference tones (3,150 Hz or 3,000 Hz) for accurate tracking<br><br><b>WRMS and Q-Peak Wow &amp; Flutter Measurement</b><br>  • Industry-standard metrics displayed live<br><br><b>Speed Deviation Meter</b><br>  • Shows ±% drift from the reference tone on a classic analog-style dial<br><br><b>Detailed Graphs for Analysis</b><br>  • Speed vs Time: see drift, warble, and slow instability<br>  • Flutter Spectrum: frequency breakdown reveals mechanical issues like capstan wobble<br><br><b>Flexible Controls</b><br>  • Switch between 3,150 Hz and 3,000 Hz tone references<br>  • Toggle WRMS scale (±0.1%, ±0.5%, ±1%)<br>  • View scrolling waveform with up to 10 seconds of history<br><br><b>Mic-Only Operation</b><br>  • No need for line-in adapters. This app works directly from your phone’s built-in mic<br><br>Whether you’re servicing gear, evaluating a new Walkman, or tracking the performance of a vintage deck, Wow &amp; Flutter Meter puts the necessary testing tools in your pocket.

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.RECORD_AUDIO`
- `com.android.vending.CHECK_LICENSE`
- `com.sk.wowflutter.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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