250+ iOS apps curated and reviewed
Out of 250+ touch tonnetz 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 | 3.5★ (4) | No | Yes | Sep 2026 | |
| 2 |  | Free | 5.0★ (1) | No | No | Jul 2026 | |
| 3 |  | Free | 4.8★ (5) | No | No | Sep 2026 | |
| 4 |  | $4.99 | 5.0★ (6) | No | No | Aug 2026 | |
| 5 |  | Free | 4.9★ (222) | No | No | Oct 2026 | |
| 6 |  | Free | 4.8★ (64) | No | No | Sep 2026 | |
| 7 |  | Free | 4.7★ (896) | Yes | Yes | Oct 2026 | |
| 8 |  | Free | — | No | Yes | Oct 2026 |
Explore Neo-Riemannian music theory with an interactive tonal lattice. Hear chords and notes, visualize harmonic transformations, and build custom progressions. Offers multiple instrument sounds and color schemes for a hands-on theoretical exploration.
Explore the mathematical and computational underpinnings of music theory. This app uses algorithms, data visualization, and computer science concepts to make understanding scales, chords, and harmony intuitive and accessible, even without prior music knowledge.
Explore music theory and create chords effortlessly with this intuitive app. It offers various modes for beginners and experienced musicians to spark creativity and build musical ideas without barriers. Supports MIDI input/output and offers customizable sound engines.
