# Circle of fifths Ultra — The perfect tool

> Visual music theory tool for key signatures and tonality. (iPhone/iPad app by Keita Okazaki.)

- Source: https://appshunter.io/ios/app/circle-of-fifths-ultra/id1671287374 (this page in markdown: same URL + `.md`)
- Developer: [Keita Okazaki](https://appshunter.io/developer/1671287376)
- Category: Music, Utilities, Music
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 97 MB
- Languages: English
- Released: 2023-02-12
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/circle-of-fifths-ultra/id1671287374/reviews.md

## What is Circle of fifths Ultra?

The Circle of Fifths is a musical tool used to represent key signatures and tonality in music theory. It is arranged in a circular fashion, with the major and minor key signatures listed in a clockwise direction, and the distance between adjacent key signatures representing a perfect fifth interval. The Circle of Fifths is useful for determining the key of a piece of music and for making smooth and natural transitions between key signatures in composition and arrangement.

## Key features

- Visual representation of key signatures
- Understanding tonality
- Identifying song keys
- Smooth key transitions
- Music theory reference


## Frequently asked questions about Circle of fifths Ultra

### What is the Circle of fifths Ultra app?

Circle of fifths Ultra is a free music theory tool designed to help users understand key signatures and tonality. It visually represents the relationships between keys, aiding in composition and analysis.

### Is Circle of fifths Ultra free to use?

Yes, Circle of fifths Ultra is completely free to download and use. There are no in-app purchases or advertisements, offering an uninterrupted experience.

### What devices does Circle of fifths Ultra support?

Circle of fifths Ultra is available on iPhone, iPad, and iPod devices. It is designed to function seamlessly across these Apple platforms.

### How often is Circle of fifths Ultra updated?

Circle of fifths Ultra was last updated on February 16, 2023, with version 1.0.1. The app was initially released on February 12, 2023.

### What is the age rating for Circle of fifths Ultra?

Circle of fifths Ultra has an age rating of 4+, making it suitable for a wide range of users interested in music theory.

### Can Circle of fifths Ultra help with composing music?

Yes, Circle of fifths Ultra is useful for making smooth and natural transitions between key signatures in composition and arrangement. It helps in understanding harmonic relationships.

### What do users think of Circle of fifths Ultra?

Based on the available data, Circle of fifths Ultra has received a perfect 5.0-star rating from 2 reviews, indicating very positive user sentiment.

### Does Circle of fifths Ultra have ads?

No, Circle of fifths Ultra is ad-free. The developer has chosen not to include any advertisements in the application.

## Version history (last 2 releases)

### 1.0.1 — 2023-02-16

Supported upside down.

### 1.0 — 2023-02-12

No release notes.

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*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 2026-06-10.*