8+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our tonnetz list covers 8+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.5★ (4) | No | Yes | Sep 2026 |
| 2 |  | Free | — | No | Yes | Jun 2026 |
| 3 |  | $0.99 | 5.0★ (1) | No | No | Aug 2026 |
| 4 |  | Free | — | No | No | Jul 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | — | No | No | Jul 2026 |
| 7 |  | $17.99 | — | No | No | Jul 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.
This app helps musicians practice intonation with customizable drone sounds. It offers various tuning systems and allows for real-time sound generation and drone list recording. Practice seamlessly with Bluetooth pedal support for switching between drones.
Make calls using your home landline number and service from your smartphone. Stay reachable everywhere with your fixed-line number. This app allows seamless integration of your landline service with your mobile device.