Circle Of Fifths Pro
Modern Circle of Fifths
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Explore keys, modes, chords, and harmony with a clear, modern Circle of Fifths. Now with support for 12 additional languages.
Circle of Fifths Pro is a musician‑first tool for understanding how music fits together. Whether you're learning harmony, composing, improvising, or teaching, the app gives you a clear, intuitive way to explore keys, scales, modes, and chord relationships.
Built with a clean interface and a modern theory engine, the app visualises the structure of Western music in a way that feels natural and immediately useful. Every interaction — from selecting a key to exploring harmonic movement — is designed to support real musical understanding.
Circle of Fifths Pro stays out of your way so you can stay focused on learning, creating, and practicing.
Free Features (Beginner Mode)
A simple, accessible introduction to the circle:
Interactive Circle of Fifths
Major and minor keys
Relative and parallel relationships
Basic key signatures and tonal centers
Clean, minimal interface
No ads, no tracking, no data collection
Perfect for beginners learning how keys connect.
Pro Features (Intermediate + Advanced Modes)
Unlock the full harmony toolkit for deeper study, teaching, and composition:
Mode Explorer
Ionian through Locrian
Scale tones, interval patterns, and modal structures
Clear visual layouts for fast learning
Chord Families
Tonic, subdominant, dominant
Diatonic chord mapping for every key
Modal interchange and harmonic movement
Key Signature Breakdown
Sharps, flats, and enharmonic equivalents
Relative major/minor connections
Diatonic Chord Strip
See diatonic chords for any selected key
Tap to hear each chord instantly
Playback Tools
Play individual diatonic chords
Play I–V–vi–IV progressions
Playback styles: Block, Up, Down
Advanced Harmonic Overlays
Secondary dominants
Pivot chords
Modulation paths
Color‑coded legend for quick understanding
Ideal for students, educators, composers, producers, and improvisers.
Why Musicians Choose Circle of Fifths Pro
Fast, intuitive visual learning
Beautiful, modern design
Powerful tools for all skill levels
Perfect for practice, teaching, and composition
Privacy‑First
No ads
No tracking
No data collection
All theory processing happens locally on your device
Circle of Fifths Pro collects no personal data.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.bamuda.com.au/circleoffifthsproprivacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
UI/UX Refinements
Fully updated visual design with a new font system and modern background styling
Cleaner layouts across all modes for faster, more intuitive navigation
Improved contrast and spacing for better readability during practice and teaching
New Help & Tips System
Added contextual help overlays for Beginner, Intermediate, and Advanced modes
Clear explanations of key relationships, diatonic harmony, and modulation tools
Designed to guide new users while giving experienced musicians quick reference points
Harmony Fixes
Resolved a minor issue where secondary dominants could appear in Beginner Mode
Beginner Mode now correctly shows only foundational key‑relationship information
Updated Screenshots
New App Store screenshots uploaded to reflect the refreshed UI/UX and new learning overlays
The developer, Bamuda Corporation Pty Ltd, 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
- Bamuda Corporation Pty Ltd
- Size
- 15.1 MB
- Category
- Music
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 12 more
- English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Circle of Fifths Pro - Lifetime $29.99
- Circle of Fifths Pro six months $8.99
- Circle of Fifths Pro twelve months $14.99
- Circle of Fifths Pro one month $1.99
- Copyright
- © 2026 Bamuda Corporation Pty Ltd