# Song Key Finder

> Analyse live music, local MP3s, or a set of chords to find the music key

Canonical page: [https://chrome-stats.com/d/uk.co.ncoreappservices.KeyFinder](https://chrome-stats.com/d/uk.co.ncoreappservices.KeyFinder)

## Overview

- **ID:** `uk.co.ncoreappservices.KeyFinder`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Ncore App Services Limited
- **Category:** MUSIC\_AND\_AUDIO
- **Downloads:** 670,792
- **Rating:** 3.63 / 5 (1,072 ratings)
- **Version:** 1.21-273
- **Last updated:** 2024-07-14
- **First published:** 2017-12-04
- **Publisher country:** GB
- **Size:** 23 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=uk.co.ncoreappservices.KeyFinder)
- **Website:** [http://ncoreappservices.co.uk/apps/songkeyfinder/](http://ncoreappservices.co.uk/apps/songkeyfinder/)
- **Privacy policy:** [http://ncoreappservices.co.uk/apps/songkeyfinder/privacy-policy.html](http://ncoreappservices.co.uk/apps/songkeyfinder/privacy-policy.html)

## Description

**Song Key Finder** is a versatile Chrome extension designed for musicians and music enthusiasts who want to identify the key of a song quickly and easily. Whether you are listening to a live performance, playing back a local MP3 file, or analyzing a set of chords, this tool provides accurate key detection right from your device.

With its ability to analyze live music through your device's microphone, scan local audio files, or process user-entered chords, Song Key Finder performs all analysis locally to ensure your data privacy and avoid consuming mobile data. Additionally, the extension allows you to save scan results for future reference and supports identifying key changes within songs by analyzing different song segments individually.

This extension is an essential companion for anyone looking to deepen their music understanding or assist with music practice and performance.

## Rankings

- #85,305 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.RECORD_AUDIO`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `uk.co.ncoreappservices.KeyFinder.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise the app for being easy to use and useful for finding song keys, especially for practice and tuning. However, multiple reviews point to inconsistent accuracy, with several stating wrong keys. Some reports mention slow responses or failed scans under certain conditions, and a few criticize the limited key list (Major/Minor). UI quirks (color indicators) also surface. Overall, it works for some scenarios but reliability and feature limitations hinder broader usefulness.

### Pros

- Easy to use and user-friendly interface
- Generally accurate key predictions
- Does what it promises (finds the key and assists tuning)
- Helpful for practice, teaching, and finding a song's key
- Lightweight with a simple, clean experience

### Cons

- Often inaccurate or wrong key predictions
- Not always reliable; occasional scan failures or slow responses
- Limited to Major and Minor keys (no support for other scales)
- Slow performance or unresponsive at times
- UI issues such as color indicators needing fixes

## Similar extensions and apps

- [Song Key Finder 2](https://chrome-stats.com/d/uk.co.ncoreappservices.songkeyfinder2) — 4,072 users
- [KeyFinder - Key&Transpose Tool](https://chrome-stats.com/d/io.kodular.tkurnyta.UpsetSalmonEgret) — 627 users
- [s.mart Song Analyzer (Chords)](https://chrome-stats.com/d/de.smartchord.droid.plus.songanalyzer) — 512 users
- [Auto-Key | Music key detection](https://chrome-stats.com/d/com.auto_key_mobile) — 152,076 users, 3.79 / 5
- [TuneDetect — key for any song](https://chrome-stats.com/d/com.keydetect) — 5,163 users
- [Tone Ear](https://chrome-stats.com/d/com.studioah7.tonear) — 39 users
- [s.mart Song Key Identifier](https://chrome-stats.com/d/de.smartchord.droid.plug.key) — 10,975 users
- [KeySense](https://chrome-stats.com/d/com.matrixreligio.keysense) — 229 users
- [MyChord - chord for any music](https://chrome-stats.com/d/com.yallafactory.mychord) — 969,899 users, 3.91 / 5
- [ChordFind](https://chrome-stats.com/d/com.companyname.chordfindermobile_android) — 14 users
- [Music Notes Helper](https://chrome-stats.com/d/bitasobhani.musicnoteshelper) — 413 users
- [Chord Analyser (Chord Finder)](https://chrome-stats.com/d/com.pragmatic.apps.piano.chord.analyser) — 471,361 users, 4.20 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/uk.co.ncoreappservices.KeyFinder)