---
title: "MIDI Wrench — App Overview"
url: https://marlvel.ai/apps/midi-wrench
category: Music
developer: Christian Schoenebeck d/b/a Crudebyte
platforms: ios, android
rating: 4.6 (68 ratings)
pricing: free
report_level: overview
generated: 2026-04-22
last_verified: "2026-04-22T08:17:16.035Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This is a specialized technical utility for MIDI debugging, not a sound-generating instrument.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Music |
| Rating | 4.6 ★ (68) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.4 |
| Latest Version (Android) | 1.8.4 |
| Developer | Christian Schoenebeck d/b/a Crudebyte |

<!-- SECTION: Summary -->
## What is MIDI Wrench?

MIDI Wrench is a diagnostic utility for iOS designed to monitor, visualize, and troubleshoot MIDI data streams. It supports hardware and software MIDI sources, including Bluetooth LE, allowing users to inspect real-time MIDI events and test connectivity.

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

- **CoreMIDI Device Monitoring**: Lists all connected MIDI accessories and virtual CoreMIDI ports from other audio apps.
- **Real-time Event Visualization**: Displays incoming MIDI events from external hardware and local apps in a live, line-by-line feed.
- **MIDI Message Transmission**: Sends Note-On, Note-Off, and Control Change messages via an integrated virtual keyboard, buttons, and rotary knobs.
- **Latency Testing**: Includes an echo feature that routes inputs to outputs to assist in measuring MIDI latency.

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

Musicians, audio engineers, and developers who need to troubleshoot MIDI hardware and software configurations.

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

- [App Store](https://apps.apple.com/us/app/midi-wrench/id589243566?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.armstrongfluidtechnology.digitalwrench&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/midi-wrench)

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