iHarmony

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.