Intervallo Music Calculator
Identify Chords & Intervals
$2.99 · Designed for iPad. Not verified for macOS.
Identify any 3-note chord or 2-note interval with absolute mathematical certainty. Built for composers and theorists.Intervallo is the ultimate music theory calculator.
IIntervallo is a chord identification tool for musicians, composers, students, and theory nerds who want clear answers without guesswork.
Instead of trying to “predict” what chord you meant, Intervallo analyzes three-note chords by their actual interval structure. It recognizes standard triads, inversions, shell voicings, quartal shapes, clusters, and other three-note sonorities.
Some chords have familiar names. Some are ambiguous. Some are better understood as unnamed pitch-class structures. Intervallo tells you the difference.
Key Features
• Three-note chord identification
Identify triads, inversions, shell voicings, quartal structures, clusters, and more.
• Bass-relative analysis
See how a chord functions based on the lowest note you played.
• Inversion awareness
Distinguishes root position, first inversion, second inversion, and other common voicings.
• Handles ambiguity honestly
Augmented chords, symmetrical structures, and unusual pitch collections are treated with care.
• Spelling-aware interval tools
Understand the difference between intervals that sound the same but are written differently, like augmented fourths and diminished fifths.
• Grand staff input
Enter and view notes on a clean grand staff interface designed for theory work and ear training.
• Octave independent
Analyze wide-spread chords just as easily as close-position voicings.
Built for serious theory, but easy to use
Intervallo is useful whether you are checking a basic triad, studying jazz shell voicings, experimenting with post-tonal sonorities, or composing with unusual harmonic shapes.
It does not force every group of notes into a familiar chord name. When a structure does not have a standard label, Intervallo says so.
Private and offline
Intervallo works completely offline. No account, no tracking, no data collection.
Read the full methodology at:
https://www.intervallo.app
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
App renamed to Intervallo Music Calculator. Audio engine improvements.
The developer, Manuel Hernandez, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Manuel Hernandez
- Size
- 1.6 MB
- Category
- Music
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Connected Reasoning
