# Circle of Fifths Xtra — A Musicians Companion > Visual music theory tool with scales, chords, and key signatures. (iPhone/iPad app by John Gellecum.) - Source: https://appshunter.io/ios/app/circle-of-fifths-xtra/id6475810586 (this page in markdown: same URL + `.md`) - Developer: [John Gellecum](https://appshunter.io/developer/1050103789) - Category: Music, Education - Price: $4.99 - Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 20 MB - Languages: American English - Released: 2025-04-16 - Data updated: 2026-09-03 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/circle-of-fifths-xtra/id6475810586/reviews.md ## What is Circle of Fifths Xtra? Circle of Fifths Xtra – Discover Music Theory in a Visual and Intuitive Way! Based on the successful Magic Circle of Fifths, Circle of Fifths Xtra offers a powerful and colorful way to understand and apply music theory. Perfect for both beginners and advanced musicians! What makes Circle of Fifths Xtra unique? • Rainbow Colors – Notes and names are intuitively linked to the colors of the rainbow. • 25 Most-Used Scales – From major and minor to modes and jazz scales. • Almost All Chords & Progressions – Explore chords and how they function in progressions. • Keys & Accidentals at a Glance – Instantly see which sharps and flats belong to a key. • Names in Multiple Notation Systems – C, D, E-, Do-Re-Mi, and the German H/B notation. • Intervals and Explanations – Learn the meaning of intervals. • For Anyone Curious About Music Theory – Whether you’re just starting or want to deepen your knowledge. • Available in 6 Languages – Dutch, English, German, French, Italian, and Spanish. Circle of Fifths Xtra is the ultimate tool to expand your musical understanding. Download now and discover the power of the circle of fifths! ## Key features - Rainbow color-coded notes - 25 most-used scales - Chord and progression exploration - Instant key signature display - Multiple notation systems - Interval explanations ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/circle-of-fifths-xtra/id6475810586/reviews.md ### 5/5 — Highly recommend to all new to music theory *2026-07-17* This is a fantastic app : comprehensive in its breath of scales, modes, chords, and all illustrated on the circle of fifth ! The audio to play the chords and arpeggios is not working however. **Developer response:** Hi, Glad you like the app. In the menu (3 lines) you need to choose for an instrument first. I bet you will hear some sound. Let me know if that works for you. There’s also a help available in the menu. ### 2/5 — wrong notation *2025-11-08* seems pretty interesting, if in the chord and arpeggios the notes on the lines were correct. C appears as B. can this be fixed? **Developer response:** Maybe you have chosen the C clef for piano or the viola? If not, maybe you can send me a screenshot? info@guitarapps.nl ## Frequently asked questions about Circle of Fifths Xtra ### What is Circle of Fifths Xtra? Circle of Fifths Xtra is a music theory application that visually represents the circle of fifths, scales, chords, and key signatures. It aims to make music theory more intuitive and accessible for musicians of all levels. ### What music theory concepts does Circle of Fifths Xtra cover? It covers a wide range of music theory, including 25 different scales, almost all chords and progressions, key signatures with accidentals, and interval explanations. The notes are also color-coded to the rainbow for intuitive learning. ### What notation systems are supported by Circle of Fifths Xtra? The app supports multiple notation systems, including C, D, E-, Do-Re-Mi, and the German H/B notation. This allows users from different musical backgrounds to understand the information presented. ### Is Circle of Fifths Xtra available in multiple languages? Yes, Circle of Fifths Xtra is available in six languages: Dutch, English, German, French, Italian, and Spanish. This broad language support makes it accessible to a global audience. ### What devices is Circle of Fifths Xtra compatible with? Circle of Fifths Xtra is compatible with Mac, iPhone, iPad, and iPod. It is designed to be a versatile tool across Apple's ecosystem. ### How often is Circle of Fifths Xtra updated? The app was last updated on November 24, 2025, indicating active development and support. The latest version is 1.2. ### What is the price of Circle of Fifths Xtra? Circle of Fifths Xtra is a paid application priced at $4.99. This one-time purchase grants access to all its features. ### Does Circle of Fifths Xtra have ads? No, Circle of Fifths Xtra does not contain advertisements. It offers an ad-free experience for users. ## Version history (last 3 releases) ### 1.2 — 2025-11-24 Bug fixes ### 1.1 — 2025-08-22 Listen now to the chords and scales with your favorite instrument: Piano, Violin, Viola, Cello, Flute, Trumpet, Saxophone, Spanish guitar, and Electric guitar. Improvements and bug fixes. ### 1.0 — 2025-04-16 No release notes. ## Apps similar to Circle of Fifths Xtra | App | Rating | Price | Category | | --- | --- | --- | --- | | [All Chords - All Scales](https://appshunter.io/ios/app/all-chords-all-scales/id1613557968) | 4.3 (6) | Free | Music | | [Quinterval](https://appshunter.io/ios/app/quinterval/id373810100) | 4.3 (20) | Free | Music | | [Circle of Fifths Guide](https://appshunter.io/ios/app/circle-of-fifths-guide/id6683300008) | 4.8 (125) | Free | Music | | [Circle o Fifths: Guitar+Piano](https://appshunter.io/ios/app/circle-o-fifths-guitar-plus-piano/id1499417636) | 4.8 (1,048) | $4.99 | Music | | [Hexatonics - Triad Pairs To Go](https://appshunter.io/ios/app/hexatonics-triad-pairs-to-go/id6740587509) | 5.0 (1) | $0.99 | Music | | [Pentatonics - Take Five](https://appshunter.io/ios/app/pentatonics-take-five/id6746047183) | — | $0.99 | Music | ## More apps by John Gellecum - [Guitar Chords in Colours](https://appshunter.io/ios/app/guitar-chords-in-colours/id1398192963) - [Guitar Scales in Colours](https://appshunter.io/ios/app/guitar-scales-in-colours/id1398193940) - [Magic Circle of Fifths](https://appshunter.io/ios/app/magic-circle-of-fifths/id1398240284) - [Guitar Flash Chords](https://appshunter.io/ios/app/guitar-flash-chords/id1451298072) - [Bass Guitar Colour Scales](https://appshunter.io/ios/app/bass-guitar-colour-scales/id1477344514) - [Piano Scales and Chords](https://appshunter.io/ios/app/piano-scales-and-chords/id1593023374) All apps by John Gellecum: https://appshunter.io/developer/1050103789 ## Related topics [circle of fifths xtra](https://appshunter.io/ios/topics/circle-of-fifths-xtra) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*