Chord Detector is an app that will analyse audio sources and automatically detect the musical chords within it.

With Chord Detector you can learn to play any track in your devices music library or Dropbox folder providing its not DRM encoded.

Chord Detector can also analyse and detect the chords within a YouTube video or a SoundCloud sound.

Chord Detector is aimed at musicians of any ability to help you learn to play many more songs, especially those whose chords aren't readily available on the internet.

Please note that iTunes Match and Apple Music is not supported due to technical constraints.

With our update Chord Detection engine its now much quiker and easier to get most accurate results possible (up to 95% in ideal conditions). Chord Detector can recognise many different chord types including major, minor, augmented, dimimished, diminished7, dominant7 and minorMajor7.

To get started just pick one of the four audio source options:

● iPod Music Library
● Dropbox
● YouTube
● SoundCloud

You can then select any track from your iPod Music Library(†), Dropbox folder, select a YouTube video or a SoundCloud sound. Chord Detector will then analyse the selected music source and within minutes (if not quicker) you will be presented with a view of the detected chords containing within that music source.

You have the option to view the detected chords in two different forms, scrolling and tabular. In both of these views you are able to play the track and the chords will move or be highlighted as the song is playing.

You can now start to view the chords of a track when analysis is still ongoing. Also you can queue up tracks to be processed, so while you are learning to play one song the chords are being generated for your other tracks in the background.

The following controls are available on the chord view screens:-

● Play/Pause - play or pause the track.
● Rewind 30s - rewind the track by 30 seconds.
● Forward 30s - forward the track by 30 seconds.
● Tempo Adj. - slow down the track without affecting the pitch by a variable amount down to 1/4 of its original speed.
● Capo Adj. - transpose the chords according to which fret you want your capo on

Now ukulele, banjo and mandolin chord diagrams are available via an in-app purchase.

† The following audio file formats are supported, MP3, AAC, WAV and AIFF. DRM protected content is not supported. Tracks must by sync'd to your device. If you use iTunes Match you must ensure that the track you wish to use in Chord Detector is first downloaded to your device (otherwise you may see a DRM warning)


What’s New

Version 1.3.0

Updated to support 64bit

Ratings and Reviews

2.4 out of 5
23 Ratings

23 Ratings

MontereyJacques ,

Too Basic to be useful for serious transcription

I am a working professional jazz musician who has experience transcribing songs. I bought this app out of curiosity, just to see how accurate it is. I selected a basic three chord 1-4-5 blues progression in Am. It detected the basic chords mostly correctly, but failed 100% of the time if any coloration was added. It will detect an Am played in the first position, but will not detect an Am6 played in the 5th. It will detect a first position Dm, but will transcribe a 10th position Dm6 as a first position Dm. For dominant 7 chords, it transcribed them as 1st position major. Verdict: may be useful for beginning players trying to learn very basic, first position folk songs; useless for serious transcription because it does not accurately detect chord extensions, slash chords or chords above the 3rd position.

reallydusapointed ,

Doesn’t Work Anymore and They Don’t Respond to Emails

I used to think this was a great ap. I used it a lot. However for about two months now the ap seams to malfunction. After scanning a song to detect chords only about 25 seconds of the songs chords will be displayed. The audio keeps playing the song but chords stop. I sent an email to customer support have not gotten a reply. Given that that don’t reply and haven’t issued an update for two years I’m guessing they are now milking this, they don’t care and have moved on.

ADWC1400myo ,

Very helpful!

Simplicity is more often than not, both elegant and beautiful. Add too those, the characteristic of utility and you can nearly, see into the promised land with clarity and resolution the pathway found within the "lay of the land" arrayed before you so resplendently! Step out and then in - to know what and where you are & then could, will must be!

Your app is awesome! Very helpful by making possible a good, sound & solid place too start!


Martian Storm Ltd
26.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Ukulele Chord Pack $0.99
  2. Banjo Chord Pack $0.99
  3. Mandolin Chord Pack $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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