Chordana Viewer
Not in any tracked top chart right now.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperCASIO COMPUTER CO., LTD.
CategoryMusic
Price4.99 CAD
Released
Rating★ 0.0 (0)
Version2.1.10
Age rating4+
First seen by us
3 Oct 2026
Installs (est.)1k+ worldwide
Rating
0.0 ★
0 ratings
Measured
Chordana Viewer on the App Store
App details
App ID
711042441
Publisher
CASIO COMPUTER CO., LTD.
On the store since
Oct 2013
12 years on the store
Minimum OS
iOS 11.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
483 MB
Also listed in
Utilities
Chordana Viewer downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Chordana Viewer
[Compatible devices]
iPhone6 or later(Except for the iPhone SE), iPad Pro, iPad(5th generation or later), iPad Air or later, iPad mini(4th generation or later)
[System requirements]
iOS 11.0 or later required.
*Important*
・To use iTunes in the Cloud songs (songs purchased or played through the iTunes Match service), first download the songs to a terminal.
・The names of iTunes in the Cloud songs that have not been downloaded to a terminal are shown on the song list, regardless of terminal settings.
・Songs protected by DRM cannot be used even if downloaded.
=Support for writing the chord chart for your favorite songs=
○ Product Features ○
An application that analyzes the tones played in an audio file and helps you write the chord chart.
Audio files in your iPad or iPhone are analyzed by the original Casio Chordana technology, and the sounds played in each song are displayed on the screen as chord chart. At the same time, the chord positions for the instrument are displayed as the song plays.
You can also play the results of the chord analysis on the instrument pad to check the outcomes. You can then edit the chords yourself as you listen to the actual sounds and write even more accurate chord chart. This is so much quicker and easier than trying to figure out the chords just by listening to them. As well as being able to save analyzed or edited chords, you can also exchange them via email with other Chordana Viewer users or print them out on an AirPrint-compatible printer.
* The analyzed chords will be a close match to the mood of the song, but may not necessarily be the same chords as those used in the original.
<Displaying chords matched to the song[Chord display pane]>
As well as showing the analyzed chords, the app has a guide bar that moves along with song playback, allowing you to check the chords being played in real time. The app also supports full-screen display so that you can just check the chord chart.
『Chord Guide』
By touching a chord in the chord display pane, you can check the chord position for the instrument selected in the Performance pane.
『Editing Chords』
You can modify the chord chart by choosing a chord from up to three candidate chords that are closest in sound to the analyzed chord. You can also specify the chord manually. You can also adjust barline position.
<Tapping a performance by watching the chord positions[Performance pane]>
Navigate in the screen using the piano or guitar finger positions to match the chord display. Of course, you can also use the chord list to check the position display for chords that are not shown. To play the chords, select the piano pad or guitar pad. To play individual notes, select them on piano keyboard. You can also use the recording function to record your performances.
* You can also purchase additional instruments and types of tones as add-ons.
<Customize your own tempo, key and vocal balance>
By using the app to import an audio file into your iPad or iPhone, you can mo
iPhone6 or later(Except for the iPhone SE), iPad Pro, iPad(5th generation or later), iPad Air or later, iPad mini(4th generation or later)
[System requirements]
iOS 11.0 or later required.
*Important*
・To use iTunes in the Cloud songs (songs purchased or played through the iTunes Match service), first download the songs to a terminal.
・The names of iTunes in the Cloud songs that have not been downloaded to a terminal are shown on the song list, regardless of terminal settings.
・Songs protected by DRM cannot be used even if downloaded.
=Support for writing the chord chart for your favorite songs=
○ Product Features ○
An application that analyzes the tones played in an audio file and helps you write the chord chart.
Audio files in your iPad or iPhone are analyzed by the original Casio Chordana technology, and the sounds played in each song are displayed on the screen as chord chart. At the same time, the chord positions for the instrument are displayed as the song plays.
You can also play the results of the chord analysis on the instrument pad to check the outcomes. You can then edit the chords yourself as you listen to the actual sounds and write even more accurate chord chart. This is so much quicker and easier than trying to figure out the chords just by listening to them. As well as being able to save analyzed or edited chords, you can also exchange them via email with other Chordana Viewer users or print them out on an AirPrint-compatible printer.
* The analyzed chords will be a close match to the mood of the song, but may not necessarily be the same chords as those used in the original.
<Displaying chords matched to the song[Chord display pane]>
As well as showing the analyzed chords, the app has a guide bar that moves along with song playback, allowing you to check the chords being played in real time. The app also supports full-screen display so that you can just check the chord chart.
『Chord Guide』
By touching a chord in the chord display pane, you can check the chord position for the instrument selected in the Performance pane.
『Editing Chords』
You can modify the chord chart by choosing a chord from up to three candidate chords that are closest in sound to the analyzed chord. You can also specify the chord manually. You can also adjust barline position.
<Tapping a performance by watching the chord positions[Performance pane]>
Navigate in the screen using the piano or guitar finger positions to match the chord display. Of course, you can also use the chord list to check the position display for chords that are not shown. To play the chords, select the piano pad or guitar pad. To play individual notes, select them on piano keyboard. You can also use the recording function to record your performances.
* You can also purchase additional instruments and types of tones as add-ons.
<Customize your own tempo, key and vocal balance>
By using the app to import an audio file into your iPad or iPhone, you can mo
Latest updates
2.1.10
・Bug fixes and performance improvements