Chordio+ vs MIDI Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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!
MIDI Pro
Generate practice tracks and composition ideas by mixing percussion and melody. Tailor sequences with custom rhythms, keys, scales, and chord progressions. Save MIDI files for further editing in your DAW.
- Generate MIDI sequences
- Mix percussion and melody tracks
- Selectable rhythm, key, scale, and chord progression
- Adjustable melody tracks
- Save MIDI files
- Import to DAW
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MIDI Pro provides practice opportunities and composition ideas. The app allows you to selectively mix percussion and melody tracks so you can play along with your preferred instrument. The generated MIDI sequences are a starting point for human composers to build upon and add more complex layers of instrumentation. A mixture of determinism and randomness is used to construct MIDI sequences that can be tailored to individual preferences. The sequences are seeded with the selected rhythm, notes are are added using the selected key, scale and chord progression. The outcome is a set of tracks that include the percussion plus 4 melody tracks that can be individually adjusted. With the paid version you can save midi files for reuse and or to import them into your favorite DAW.
Screenshots
Verdict
The clearest difference is review sentiment: Chordio+ at 33% against MIDI Pro's 0%. On price, update cadence, ads and in-app purchases 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. Chordio+ sells 11 one-off in-app purchases and MIDI Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Chordio+ ships an update every 5 weeks, MIDI Pro every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | Chordio+ | MIDI Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (6 ratings) — better | — |
| Positive reviews | 33.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 6 — better | — |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 154 MB | 165 MB |
| Age rating | 17+ | +4 |
| Developer | One In A Billion Ltd | renee zuleta |
Customer experience
Chordio+
MIDI Pro
In-app purchases
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
MIDI Pro
- Full Access Purchase$12.99









