---
title: "Tonality: Music Theory — App Overview"
url: https://marlvel.ai/apps/com-hostetlerapps-tonality
category: Music
developer: Bryce Hostetler
platforms: ios
rating: 4.8 (127 ratings)
pricing: paid
report_level: overview
generated: 2026-04-19
last_verified: "2026-04-23T05:03:56.563Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** Tonality combines an extensive educational theory database with professional-grade AUv3 MIDI tools in a single, one-time purchase.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Music |
| Rating | 4.8 ★ (127) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 10.1.1 |
| Developer | Bryce Hostetler |

<!-- SECTION: Summary -->
## What is Tonality: Music Theory?

Tonality is a comprehensive music theory reference and production tool that provides a database of over 1,000 chords and scales for piano and guitar. It distinguishes itself by offering four AUv3 plugins, including chord pads and circle of fifths tools, which integrate directly into DAW workflows for composition and performance.

<!-- SECTION: Key Features -->
## Key Features

- **Chord and Scale Database**: A reference library containing over 1,000 chords for piano and guitar with support for inversions and omittable notes.
- **AUv3 Integration**: Includes four Audio Unit plugins, such as customizable chord pads and a circle of fifths tool, for use within mobile DAW environments.
- **ML-Powered Identification**: Uses a machine learning algorithm to identify chords in real-time via the device microphone or MIDI input.
- **Reverse Chord Search**: Allows users to identify chords by inputting notes directly onto a virtual piano or fretboard interface.

<!-- SECTION: Target Audience -->
## Who is it for?

Musicians of all skill levels, from students learning music theory to producers requiring MIDI-integrated composition tools.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/tonality-music-theory/id1467552236?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/com-hostetlerapps-tonality)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-hostetlerapps-tonality).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*