Chordana Viewer vs Additive Drum Machine
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.
Additive Drum Machine
Create unique drum beats with additive rhythm and traditional drum machine functionality. Design sequences of any length and structure, easily switching steps on and off to craft complex patterns. Ideal for practicing odd meters and exploring diverse rhythmic structures.
- Additive rhythm concept
- Traditional drum machine interface
- Customizable sequence length
- Step sequencing
- Odd meter support
- Symmetrical and asymmetrical rhythms
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With Additive Drum Machine you can create drum beats using the concept of “additive rhythm” in combination with the sounds and ease of use of a traditional drum machine. Construct step sequences of any length and structure by the chaining of "long" and "short" beats. Then switch on and off individual steps to create a drum pattern. Whether used as a practice tool or composition sketchpad, its intuitive interface allows you to easily make drum patterns that use odd meters, symmetrical and asymmetrical rhythmic structures, and various subdivisions of the pulse. With Additive Drum Machine your musical imagination is the limit.
Screenshots
Verdict
The clearest difference is review sentiment: Additive Drum Machine at 100% against Chordana Viewer's 25%. Additive Drum Machine also leads on rating (5.0 vs 1.3) and in-app purchases (none vs 10). Chordana Viewer's advantage is update cadence (every 2 months vs every 15 months) and iOS requirement (11.0 vs 14.5). On ratings volume, ads, monetization model 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
Chordana Viewer costs $3.99 and Additive Drum Machine $2.99 up front. Chordana Viewer sells 10 one-off in-app purchases. Additive Drum Machine asks for nothing beyond the download.
Additive Drum Machine holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 25% of Chordana Viewer's written reviews are positive against 100% of Additive Drum Machine's.
Chordana Viewer ships an update every 2 months, Additive Drum Machine every 15 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Chordana Viewer | Additive Drum Machine |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 1.3 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 2 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.5 |
| Further details — not scored | ||
| Size | 461 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | Giovanny Bermudez |
Customer experience
Chordana Viewer
Additive Drum Machine
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
Additive Drum Machine
No in-app purchases
Questions
Is Chordana Viewer free?
Is Additive Drum Machine free?
Which has better reviews, Chordana Viewer or Additive Drum Machine?
Do Chordana Viewer or Additive Drum Machine have ads?
Which is updated more often, Chordana Viewer or Additive Drum Machine?
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