1500+ scales, chords & harmonisations. Audio playback, full-text search, and four notation systems — offline, always. The essential reference for every musician.
The ultimate music theory reference for every musician.
iHarmony gives you instant access to scales, chords, harmonisations, and notes — all in one beautifully designed app. Whether you're preparing for a jam session, writing a song, studying jazz theory, or doing your music homework, iHarmony has the answer.
• 1500+ scales, chords, and harmonisations
• Chord harmonisations for every scale
• Audio playback for every entry — train your ear while you study
• Four notation systems: English (C, D, E), Italian (Do, Re, Mi), German (C, D, H), French (Ut, Re, Mi)
• Full-text search — find any scale or chord in seconds
• Works offline — no internet required
Stop searching the web for:
"What notes make up a G# diminished 7 chord?"
"What are the degrees of the Bebop Dominant scale?"
"What's the harmonisation of D# Melodic Minor?"
iHarmony answers these instantly. Over 1500 entries covering common and exotic scales alike — from the Lydian b7 to the Neapolitan, from Whole Tone to Hungarian Minor.
Designed for guitarists, pianists, composers, music students, and professionals. Perfect for functional analysis of jazz standards, songwriting, and music education.
Full VoiceOver and accessibility support.
Dark mode supported.
A must-have for every musician.
There are many apps available that show chord and scale diagrams, so why is this app IMHO so great? Well, many of us own a big fat chord book and probalbly a scale book or three - but how many of those chords etc are we able to actually remember. When you learn the formulas to build a scale or harmonies you are opening up a lot of possibilities - instead of trying to memorize chords you can begin to build them in any position. This app is another useful tool for a musians toolbox, that complements and enhances other approaches (such as chord books etc) It also makes an indispensable reference resource.
Brilliant
jazz mum
This is one of the best apps I have. It has helped me pass my Grade 5 Jazz. I use it often to remind me how some of those tricky chords are made up, and you can hear it too. Life saver.
Crap?
Dynamitri
Not really. Does what it says, but could do so much better with the piano keys indicated, instead of a plain text that it makes use of. Also, zooming would help it a lot, or a larger font, as some information is basically indecipherable due to the miniscule font size. On the other hand, can someone please tell me what does the delta sign that is being used here and there in this app means? Is is a substitute for an otherwise different notation symbol? It appears a bunch of times and got me quite confused, honestly... Well, anyway - I've spent my money now, so I'm looking forward to a decent update, that hopefully comes.
Excellent
BeastMasterBDSM
A great help and source of information... Highly recommend
Long overdue update of iHarmony! Vast code refresh, Liquid Glass support, migrated to SwiftUI, improved UX and increased stability.
Version 6.0.0
The developer, Alberto De Bortoli, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
Alberto De Bortoli
Size
4.7 MB
Category
Music
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
iPad Requires iPadOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
