Comparison

Chord Tracker vs EXPANSION EXPLORER

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Chord Tracker

This app analyzes audio songs from your device's music library to display chord symbols on screen. It offers graphical piano keyboard and guitar tab views to aid practice and performance. It's designed to help musicians play along with their favorite tunes.

Highlights
  • Audio song analysis
  • Chord symbol display
  • Graphical piano keyboard
  • Guitar tab display
  • Practice and performance aid
Read full description

The Yamaha Chord Tracker app for iPhone/iPod touch/iPad helps you practice and perform songs by  analyzing the audio songs stored in your iOS device and then displaying the chord symbols for you. ■Features Chord Tracker analyzes the audio songs stored in your iOS device's music library and then displays the song's chords on the screen, allowing you to play your favorite songs. And now, with both graphical piano keyboard and guitar tab display options, Chord Tracker is even more powerful. ■Note 1. The chords displayed by this application will match the mood of the original song very closely, but may not be an exact match for the original chords used. 2. Chord Tracker will not work for songs in iCloud or protected by DRM (Digital Rights Management). 3. Chord Tracker will not work with Music Streaming services such as Apple Music.

About

EXPANSION EXPLORER

Discover, install, and manage additional content for compatible Yamaha arranger workstations. Explore a library of free Voices, Styles, and Multi Pads, and even get style recommendations based on audio files. Preview content before installing it directly to your instrument.

Highlights
  • Discover and install expansion content
  • Search and filter by country, tempo, beat
  • Analyze audio files for style recommendations
  • Pre-listen to content before installation
  • Wireless or USB installation
  • Create favorite content lists
  • Light and dark mode options
Features
Read full description

Welcome to EXPANSION EXPLORER, a one-stop solution for discovering, installing and managing Expansion content on PSR-SX920/SX720/A5000 and Genos2 Arranger Workstations. ・What is Expansion Content? Expansion Content includes free additional Voices, Styles, Multi Pads, and more for you to install and enjoy on your Arranger Workstation. A growing library of Expansion Content is already available, featuring a diverse range of instruments and Styles from around the world. ・Search Search for content directly from the app's Home screen and use the advanced search options to filter results by country, tempo, beat, and more. ・Style Recommendations If you have an audio file of the song you want to play, Expansion Explorer can analyze it and recommend the most suitable Style from the Expansion Content library for your performance. ・PRE-LISTEN Content can be auditioned in the app before installation. You can listen to the auditions anytime, even without being connected to your instrument. ・INSTALL The app installs your chosen content directly to your instrument. Depending on your instrument’s specification, this is done wirelessly or via a USB cable. ・CONVENIENT FEATURES Create a list of your favorite content, view your preview and installation history, and switch between light and dark modes in the app. ---- CAUTIONS : Contents already installed by Yamaha Expansion Manager into the Expansion area of your keyboard, including pre-installed content in PSR-SX920 and 720, will be removed when installing new content from Yamaha EXPANSION EXPLORER. About pre-installed content in PSR-SX920 and 720, you will be able to reinstall them through the EXPANSION EXPLORER app, if desired.

Screenshots

Chord Tracker4 screens
EXPANSION EXPLORER4 screens

Verdict

The call

The clearest difference is rating: Chord Tracker at 3.6 against EXPANSION EXPLORER's 3.0. Chord Tracker also leads on ratings volume (170 vs 2) and review sentiment (49% vs 25%). EXPANSION EXPLORER's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Chord Tracker holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: Chord Tracker has 170 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 49% of Chord Tracker's written reviews are positive against 25% of EXPANSION EXPLORER's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on June 10, 2026 and September 1, 2026 respectively.

Scorecard5 real differences · 5 level
Chord Tracker versus EXPANSION EXPLORER: the parameters behind the verdict, then further details
ParameterChord TrackerEXPANSION EXPLORER
PriceFreeFree
Rating3.6 (170 ratings) — better3.0 (2 ratings)
Positive reviews48.7% of reviews — better25.0% of reviews
Number of ratings170 — better2
Update frequencyEvery 5 monthsEvery 5 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size175 MB154 MB
Age rating4+4+
DeveloperYamaha Corporation of AmericaYamaha Corporation

Customer experience

Chord Tracker

All ratings165 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews78 reviews
Positive48.7%
Neutral10.3%
Negative41.0%

EXPANSION EXPLORER

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

Bugs and requests

Chord Tracker

Reported bugs

13 issues
  • App crashes when detecting chord sections
  • Audio playback out of sync with score on iPad Pro
  • Black screen with only alphabet visible on some devices
  • Songs disappear from User Songs after import
  • Cannot load songs from local device files
Show 8 more
  • Dropbox connection fails to display songs
  • Apple Music songs show as 'This data cannot be selected'
  • Playback produces artifacts when slowing tempo
  • VoiceOver doesn't follow chord tracking
  • Bluetooth headphone playback not working
  • Only 2 songs displaying from library
  • License recognition failure for newly downloaded songs
  • App incompatible with iOS 13 and later versions

Requested features

16 requests
  • Restore real-time microphone chord detection
  • Support for Spotify and Google Play Music
  • Local file import from device storage
  • Bluetooth speaker output support
  • Print or export chords as PDF
Show 11 more
  • Ukulele chord display
  • PC/Web version of the app
  • iCloud Drive support for file imports
  • Auto-metronome feature
  • Save edited versions (transposed, etc.) to favorites
  • Sync favorites across multiple devices
  • Support for Bb and Eb instruments
  • Negative capo/pitch shift options
  • Advanced chord detection (7th, 9th, 11th, 13th chords)
  • Playback of chords-only instrumental version
  • Direct contact/support channel with Yamaha

EXPANSION EXPLORER

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Chord Tracker

No in-app purchases

None

EXPANSION EXPLORER

No in-app purchases

Questions

Is Chord Tracker free?
Chord Tracker is free to download, with no in-app purchases.
Is EXPANSION EXPLORER free?
EXPANSION EXPLORER is free to download, with no in-app purchases.
Which has better reviews, Chord Tracker or EXPANSION EXPLORER?
Chord Tracker is rated higher. Chord Tracker averages 3.6 out of 5 from 170 ratings, while EXPANSION EXPLORER averages 3.0 from 2 ratings.
Do Chord Tracker or EXPANSION EXPLORER have ads?
Chord Tracker shows ads; EXPANSION EXPLORER does not.
Which is updated more often, Chord Tracker or EXPANSION EXPLORER?
Chord Tracker ships an update every 5 months, and EXPANSION EXPLORER every 5 months. Most recently, Chord Tracker was updated on June 10, 2026 and EXPANSION EXPLORER on September 1, 2026.

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