247+ iOS apps curated and reviewed
Out of 247+ circle of fifths guide apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (135) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.9★ (233) | No | No | Oct 2026 | |
| 3 |  | Free | 1.0★ (2) | No | No | Aug 2026 | |
| 4 |  | Free | — | No | Yes | Oct 2026 | |
| 5 |  | Free | — | No | Yes | May 2026 | |
| 6 |  | Free | 4.9★ (63) | No | No | Oct 2026 | |
| 7 |  | Free | — | Yes | Yes | Oct 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
Master music theory with an interactive Circle of Fifths. Learn key signatures, chords in key, and chord shapes with visual aids and audio playback. Ideal for musicians of all levels to deepen their understanding of harmony.
Explore music theory with a visual representation of the 12 keys. Understand scales, compose chord progressions, and mix in key. Features color-coded relationships, key signatures, and sounded chords for each key.
Learn music theory with an interactive Circle of Fifths. Explore major and minor scales, hear them played, and understand key relationships easily. This app simplifies complex musical concepts for quick learning.
