Quinterval vs Chordio+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quinterval
Explore the circle of fifths with interactive scale displays. Select keys via touch or slider to view major and parallel minor scales. Customize note notation and clef for a personalized musical experience.
- Interactive circle of fifths
- Major and parallel minor scale display
- Adjustable display range
- Customizable note notation (German, English, Italian)
- Clef selection (G, C, F)
- Key signature display
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Quinterval is an interactive circle of fifths including the display of the corresponding scales. A key in the circle can be selected either by touching the tonic or by turning the slider in the middle. The circle displays both the respective major and parallel minor scales. The display ranges from F-flat major (D-flat minor) to G-sharp major (E-sharp minor). A second slider can be used to move the visible circle section accordingly. The note names can be set between german, english or italian notation. The lower area shows the related major scale with its key signature. The first step and the sixth step with the corresponding minor scale are highlighted. The notes can be displayed with G-Clef, C-Clef or F-Clef. The accidentals can also be displayed before the individual notes. Additional functionality is available as an InApp purchase: - Display the notes of the parallel minor scale - Display triads with their chord names - Playback notes by tapping on them
Chordio+
This music creation and learning tool offers an interactive way to explore chords and scales. It helps users compose songs, store progressions, and connect MIDI controllers for real-time feedback. Ideal for musicians, composers, and educators seeking to enhance their music theory knowledge and creative output.
- Build chord progressions with a sequencer
- Chord and scale exploration modes
- MIDI controller integration
- Custom chord creation and editing
- Export MIDI to DAWs
- Learn songs with adjustable speed and pitch
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Looking for a spark for your upcoming song or unsure about the names of chords to communicate with fellow musicians? Introducing Chordio+, a powerful tool for composition and music theory that offers an enjoyable and interactive experience. This app allows you to explore chords and scales in a fun and engaging way. It also provides a convenient platform for storing all your distinctive musical chord progressions in a single location. As a result, Chordio becomes an indispensable resource for contemporary music producers, composers, and educators. Take your music theory knowledge to the next level and create innovative chord progressions for your latest composition. With a range of internal sounds included, you can explore the tool's features without needing any other external equipment. Connect your MIDI controller to Chordio+ and see chord names appear on the Grand Staff in real-time as you play. Solo over chord progressions using the built-in sounds, and quickly rearrange or transpose chord progressions on the fly for added flexibility. Chordio+ empowers you to unleash your creativity and take your music to another level. The main features are divided into four workspaces: Composition • Build-in sequencer to create chord progressions. • Build-in Chord progression generator. • Create custom chords, edit existing chords, get chord inversions, and extended chords. • Drag & Drop to change the song structure. • Transpose the entire chord progression with a single tap. • Create a playlist of custom chord progressions. • A Chord Types & Voicings panel helps you generate new chords. • Play-along with a backing rhythm track. • Save/load songs, export it as MIDl to your favourite DAW. • Download chord progressions from a growing collection of Chord Packs. • Features a chord transformer that allows you to easily substitute a selected chord with a suggested alternative. Modes • Interactive way to learn what scales are associated with each mode. • Practice modes in Chordio+. • Change tonic, mode, and layout to discover the relationship between musical notes, chords, and scales. Scales • Practice scales with a metronome in all keys. • Contains more than 40 scales you can work with. • Staff view for chords and scales. • Tap on scale notes to show their corresponding intervals. Lessons • Learn to play songs at your own pace. • Download music from a growing collection of Lesson Packs. • Lessons can be slowed down or pitch changed. KEY FEATURES: • MIDI keyboard support. • Build progressions using the chord generators. • Export MIDI to your DAW or sequencer. • Custom chords, edit existing chords, get extended chords. • Play internal sounds. • Arpeggio, strum and performance modes. • Mac version include a detachable resizable Grand Staff, Chord Display, and Keyboard Views. • Customise the Keyboard highlight color. • Select chord, to display a range of related scales and chords. • Tap a note on the Grand Staff to highlight it with a color. • Choose from selection of backing rhythms that fit specific genres. • Chord Pattern playback Always backup your chord progressions!
Screenshots
Verdict
The clearest difference is review sentiment: Quinterval at 78% against Chordio+'s 33%. Quinterval also leads on rating (4.3 vs 2.3) and ratings volume (20 vs 6). Chordio+'s advantage is update cadence (monthly vs every 8 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Quinterval sells 1 one-off in-app purchase and Chordio+ sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Quinterval holds the better App Store score, 4.3 against 2.3. Both are backed by a comparable volume of ratings — 20 and 6 respectively. Written reviews point the same way: 78% of Quinterval's written reviews are positive against 33% of Chordio+'s.
Quinterval ships an update every 8 months, Chordio+ monthly. The most recent releases landed on September 18, 2026 and June 11, 2026 respectively.
| Parameter | Quinterval | Chordio+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (20 ratings) — better | 2.3 (6 ratings) |
| Positive reviews | 78.2% of reviews — better | 33.3% of reviews |
| Number of ratings | 20 — better | 6 |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 98 MB |
| Age rating | 4+ | 17+ |
| Developer | Oliver Hahn | Anthony Briscoe |
Customer experience
Quinterval
Chordio+
In-app purchases
Quinterval
- Enhanced Version$0.99
Chordio+
- Free Chord PackFree
- Arabesque No.1$0.99
- RnB Chords No.1$1.99
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- Neo-Soul Tunes 1$4.99
- Neo-Soul Progressions 1$4.99
- II-V-I Progressions$4.99
- Jazz Progressions 1$4.99
- RnB Progressions 1$4.99
- Chord Progressions 251 No.1$4.99
- Classical Progressions 1$4.99
- Unlock App$6.99









