Chordio
7.5#3 in chord finder software$14.99 one-timeFree planiOSmacOS
VisitChordio vs Reverse Chord Finder Pro
Reverse Chord Finder Pro
7.1#6 in chord finder softwareFrom $0.99 a monthiOSmacOS
VisitWhat both publish
| Fact | Chordio | Reverse Chord Finder Pro |
|---|---|---|
| API and SDK | The official pages describe MIDI and DAW interoperability but provide no public API or SDK documentation. | The opened product and support documentation describes the mobile app but provides no public API, SDK or integration instructions. |
| Maker identity | The App Store identifies One In A Billion Ltd as the developer and Anthony Briscoe as provider. | Ghostdust Pty Ltd develops iOS, tvOS and macOS apps and is located in Queensland's Gympie region, Australia. |
| Privacy | Apple lists the developer's stated privacy practice as no data collected. | Apple lists purchase history as data that may be collected without being linked to the user, and says the developer's privacy responses have not been verified by Apple. |
| Purpose | Chordio is an interactive music composition and theory app for producers, composers, teachers and learners. | The app identifies chord names from two or more selected notes. |
| Support | Support is offered through a contact form, email, FAQ and video tutorials. | Bug reports are requested by email with expected and actual behavior, device and OS version, reproduction steps, and optional screenshots or video. |
| System requirements | The App Store lists iPadOS 16.6 or later, macOS 13.5 or later and visionOS 1.0 or later for the main app. | The listing requires iOS 15.6 or later, while Mac use requires macOS 13 or later on Apple silicon and visionOS requires version 1.0 or later. |
| What it does | Chordio is an interactive composition and music-theory app for building progressions, exploring scales and modes, practising sheet music and learning theory. | The app identifies possible chord names from two or more notes entered by the user. |
Chordio plans
- FreeFree
- Free downloadFree
- Full Unlock$14.99, paid once
- Content Packs—
Reverse Chord Finder Pro plans
- Weekly (Personal)$0.99 a month
- Monthly (Personal)$1.99 a month
- Monthly (Family)$2.99 a month
- Annual (Personal)$17.99 a year
- Annual (Family)$24.99 a year
- Lifetime (Family)$34.99, paid once
Pick Chordio if…
Chordio suits producers, composers, teachers and learners who want music theory tools alongside composition and sheet music features. It is for Apple-platform users; there is no Android app.
Pick Reverse Chord Finder Pro if…
It suits musicians, composers, and music students who want to analyze harmonies, construct chords, or learn chord theory. Its piano, string-instrument, and score inputs give users different ways to enter notes.