# Scales Pro: Circle of Fifths — Chords, Scales & Metronome

> Interactive music theory tool with Circle of Fifths, scales, chords, and metronome. (iPhone/iPad app by Olric Digital.)

- Source: https://appshunter.io/ios/app/scales-pro-circle-of-fifths/id1512814631 (this page in markdown: same URL + `.md`)
- Developer: [Olric Digital](https://appshunter.io/developer/1207669485)
- Category: Music, Education
- Price: Free with in-app purchases (on sale, was $2.99)
- Rating: 4.52/5 from 288 App Store ratings · 24 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.6 · 49 MB
- Languages: English
- Released: 2020-05-13
- Data updated: 2026-07-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/scales-pro-circle-of-fifths/id1512814631/reviews.md

## What is Scales Pro?

Master music theory with an interactive Circle of Fifths wheel, chord charts, scale diagrams, and a precision metronome - all in one app.

INTERACTIVE CIRCLE OF FIFTHS
Swipe the wheel to explore all 12 keys. Tap any note to hear it. Instantly see the relationship between major and minor keys, sharps, and flats.

SCALES & MODES
Visual fretboard and keyboard diagrams for:
- Major, Natural Minor, Harmonic Minor
- Pentatonic (Major & Minor), Blues
- All 7 modes: Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian

CHORD LIBRARY
Piano chord charts for Major, Minor, Dominant 7th, Major 7th, and Minor 7th - generated instantly for any key.

METRONOME
Keep perfect time while you practice scales and chords.

INSTRUMENTS
Guitar, Bass Guitar, and Piano - with color-coded diagrams for easy learning.

Perfect for guitar players, pianists, music students, songwriters, and anyone learning music theory. No internet required.

https://www.apple.com/legal/internet-services/itunes/dev/stdeula

## Key features

- Interactive Circle of Fifths wheel
- Chord charts and scale diagrams
- Metronome for practice
- Visual fretboard and keyboard diagrams
- Support for guitar, bass, and piano

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Annual Full Version | $9.99 | per year |
| Monthly Full Version | $1.99 | per month |
| Weekly Full Version | $0.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


## Recent user reviews (10 of 24)

All indexed reviews: https://appshunter.io/ios/app/scales-pro-circle-of-fifths/id1512814631/reviews.md

### 4/5 — Not bad

*2026-03-08, version 3.4*

Could really be levelled up if the Circle showed minor and diminished chords for each scale. It’s been improved but would still like M m dim on the scales wheel. The chord wheel is not readable where note degrees overlap chord names

### 5/5 — So helpful!

*2026-03-05, version 3.4*

It’s great to have such a helpful tool with a clear interface. At my request, the developer just added scalar numbers to the wheel. Thanks!!

### 1/5 — Waste of money

*2026-02-08, version 3.1.0*

I had bought the app in 2024 for a one time fee just for them to lock pretty much all scales behind a subscription. Don’t help fund these people. Every thing was available before they changed it to be subscription based. Now I paid money to not get the product I was promised. Such a scam

### 4/5 — Not bad

*2026-01-17, version 2.8.7*

Could really be levelled up if the Circle showed minor and diminished chords for each scale.

### 2/5 — The piano version too limited

*2025-01-26, version 2.8.7*

The app has good features, but the images in the App Store only show the guitar view. The piano view is way more limited. Only a few scale options, but the guitar view has way more. If the same interface & features were in the piano section would have given 5 stars

### 1/5 — App said it was 2.99 charged me $19.24?!

*2024-02-16, version 2.8.6*

Not sure that is going on there, but I’ve not looked at the app 2 seconds and already not liking what just happened.

### 2/5 — Beautiful interface but very limited

*2023-07-24, version 2.8.6*

Unsure why you had to limit the chords for piano, but not guitar or bass. 

Could have been a good teaching tool and resource.

### 1/5 — Pour débutant

*2023-04-30*

Pour débutant only

### 2/5 — Doesn’t actually use the power of the circle. What a waste

*2023-03-12, version 2.8.6*

Why not expand the circle and show the relationships of the notes? Cool
UI but falls b…(flat)

### 5/5 — Best app for writing music!

*2023-03-03, version 2.8.6*

Best app for writing music, or even just following proper chord progressions and all

## Frequently asked questions about Scales Pro

### What does Scales Pro: Circle of Fifths do?

This app helps you master music theory by providing an interactive Circle of Fifths wheel, chord charts, scale diagrams, and a precision metronome. It offers visual aids for guitar, bass, and piano, making it easier to learn relationships between keys, scales, and chords.

### What are the key features of this music theory app?

Key features include an interactive Circle of Fifths wheel that allows you to explore keys and hear notes, detailed diagrams for various scales and modes (Major, Minor, Pentatonic, Blues, and 7 modes), a chord library for piano, and a metronome to keep time. It also supports guitar, bass, and piano with color-coded diagrams.

### Is this app free to use?

The application is free to download and use, but it does offer in-app purchases. This means some features or content might require an additional purchase to unlock.

### What instruments does the app support?

The app provides visual diagrams and learning aids for guitar, bass guitar, and piano. These diagrams are color-coded to facilitate easier learning of scales, chords, and their relationships within different keys.

### Who would benefit from using this app?

This app is ideal for guitar players, pianists, music students, songwriters, and anyone who is learning music theory. Its comprehensive tools and visual aids cater to a wide range of musical skill levels and learning preferences.

## Version history (last 5 releases)

### 3.6 — 2026-04-06

- analytics api integration

### 3.5 — 2026-03-14

- icon updated

### 3.4 — 2026-03-01

- updated wheel

### 3.3 — 2026-02-26

- some improvements

### 3.2 — 2026-02-15

- bug fixes and enhancements

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## More apps by Olric Digital

- [Sorty for Spotify](https://appshunter.io/ios/app/sorty-for-spotify/id1542511939)

All apps by Olric Digital: https://appshunter.io/developer/1207669485

## Related topics

[scales pro](https://appshunter.io/ios/topics/scales-pro) · [circle of fifths guitar](https://appshunter.io/ios/topics/circle-of-fifths-guitar) · [circle of fifths pro](https://appshunter.io/ios/topics/circle-of-fifths-pro) · [circle of fifths music theory](https://appshunter.io/ios/topics/circle-of-fifths-music-theory) · [circle of fifths xtra c](https://appshunter.io/ios/topics/circle-of-fifths-xtra-c) · [music scale](https://appshunter.io/ios/topics/music-scale) · [bass chords and scales](https://appshunter.io/ios/topics/bass-chords-and-scales) · [the chord wheel](https://appshunter.io/ios/topics/the-chord-wheel) · [scales performance](https://appshunter.io/ios/topics/scales-performance)

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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 2026-07-24.*