Chordana Viewer vs PLAYnJAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chordana Viewer
This application analyzes audio files to automatically generate chord charts for your favorite songs. It displays chords in real-time as the music plays and allows for manual editing and instrument pad playback.
- Automatic chord chart generation
- Real-time chord display
- Chord editing and manual input
- Instrument pad playback
- Tempo, key, and vocal balance customization
- Email sharing and AirPrint compatibility
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[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 modify the tempo or key of the song. You can also adjust the balance between vocals and accompaniment, which is useful for transcription. If you change the key, the chords in the chord display pane are also converted automatically, so transposition is simple. <The Technology Behind Chordana> The Chordana series apps use original Casio technology to analyze audio files. The apps achieve unprecedented success in extracting natural chords from the time changes and the distribution of frequency components included in audio waveforms, while also taking into account the characteristics of the harmonies, melodies and rhythm instruments included in the song.
PLAYnJAM
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Become a real pianist now! and Discover the Music band. A lot of fun, with Two Play modes: Playmode 1: iPad alone Play Piano tiles game or Play 8 different instruments. Piano, Rock Organ, Church organ, Strings, Guitar, Pan Flute, Trumpet, Synth Each songs have 3 different arrangements Pop, Hip hop, or Electro and are progressive. Playmode 2: Connect in Bluetooth the non included iDance Keyboard Controller PLAYKEYS25 and Enjoy a real 25 keys high quality keyboard, with direct access to the 8 instruments, and discover 10 more instruments to play, without any inapp. All Menu pages can be accessed from your PLAYKEYS25 as well. How fun is it to capture the most precious moments of the year with a wink of rhythms? Let’s MUSIC your soul with the beat of most popular kid’s songs. PLAYnJAM key features: Appealing, modern and diverse music genres to satisfy every music taste! 8 instruments to play the solo in direct access during demo mode, learn mode or game mode. We have 3x styles per songs: Pop, Hip hop, or Electro, hear the music like you never heard it before. Discover instruments mode (when connected to the iDance PLAYKEYS25 keyboard) with total of 18 instruments Discover Instruments mode includes cartoon video to present the instruments Learning mode have 3 speeds, learn at your pace. Game’s rules: 1. Tap the correct keys 2. Avoid the wrong keys 3. Play on time, you can lower the tempo So, get ready to try out the most challenging piano game for free! Besides, to improve the game’s performance and offer a customized user experience, It is recommended to use the iDance PLAYKEYS25 Keyboard. Support: Are you having any problems? Send the email to info@idanceintl.com or contact us on our web site. PLAYnJAM is from iDance, the number one Karaoke and Musical instruments company for Youngster and teenagers. Music lovers can interact with hundred of our gear in our ecosystem. At iDance, we believe that it is YOUR MUSIC, it is YOUR STYLE – MUSIC is Easy, MUSIC is Fun.
Screenshots
Verdict
The clearest difference is price: PLAYnJAM at Free against Chordana Viewer's $3.99. PLAYnJAM also leads on in-app purchases (none vs 10). Chordana Viewer's advantage is iOS requirement (11.0 vs 13.4). On update cadence, ads 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
PLAYnJAM is free to download; Chordana Viewer costs $3.99 up front. Chordana Viewer sells 10 one-off in-app purchases. PLAYnJAM asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 3, 2026.
| Parameter | Chordana Viewer | PLAYnJAM |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 1.3 (3 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 461 MB | 147 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | iDance |
In-app purchases
Chordana Viewer
- CLEAN GUITAR$0.99
- VA Synth 1$0.99
- ROTARY DRAWBAR 1$0.99
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- XYLOPHONE$0.99
- VIBRAPHONE$0.99
- SYNTH STRINGS$0.99
- SYNTH BRASS$0.99
- PIANO PAD$0.99
- STRINGS PIANO$0.99
- STRINGS$0.99
PLAYnJAM
No in-app purchases
Questions
Is Chordana Viewer free?
Is PLAYnJAM free?
Do Chordana Viewer or PLAYnJAM have ads?
Which is updated more often, Chordana Viewer or PLAYnJAM?
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