MIDI Wrench vs midimittr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI Wrench
This app acts as a versatile tool for managing MIDI devices on iOS. It allows you to monitor incoming MIDI messages in real-time and send your own MIDI commands using virtual controls. It's useful for troubleshooting MIDI setups and understanding device communication.
- Monitor incoming MIDI events
- Send MIDI messages
- Virtual MIDI keyboard, buttons, and knobs
- Configurable virtual controls
- Filter MIDI events
- Copy MIDI events to clipboard
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The Swiss army knife for your daily MIDI setup tasks. Connect a MIDI keyboard, MIDI sound expander or any other MIDI device to your iPad, iPhone or iPod touch by using the Apple USB camera adapter or any other adapter supported by Apple. Visualize and monitor MIDI messages sent by the connected MIDI device or send MIDI messages to those connected MIDI devices. This is a simple but helpful tool to find problems in your MIDI setup or simply to spot what kind of messages various MIDI devices are sending exactly. This app supports all hardware and software sources for MIDI, including Bluetooth LE MIDI ! Current Features: • Lists all CoreMIDI devices (i.e. attached MIDI accessories) and all so called "virtual CoreMIDI ports" (i.e. audio Apps) on your iPad / iPhone / iPod touch. • Displays incoming MIDI events of external MIDI hardware and local MIDI apps in real-time. • Send MIDI Note-On, Note-Off and Control Change messages by using the virtual MIDI keyboard, buttons and rotary knobs. • Virtual on-screen MIDI controls are fully configurable, so you may assign other MIDI controller numbers and more. • The virtual keyboard keys, rotary knobs and buttons automatically update to the values sent by connected MIDI devices. • Filter out MIDI events you are not interested in. • Copy MIDI events with one tap to the iOS clipboard, and paste them as text in another app like Mail. This app is free, and it does not contain any ads or other annoying things. Really! Anti-Spy Commitment: We take your privacy very seriously. None of our apps contain so called „spy” behaviors and we committed ourself to a very high privacy standard. MIDI Wrench does not collect any information. For more information about our privacy commitment, read our „Privacy Policy for Mobile Apps”.
midimittr
This app enables low-latency MIDI connections to iOS music applications via Bluetooth LE or USB. It routes virtual MIDI ports to external devices, allowing seamless wireless or wired integration with compatible software.
- Low-latency MIDI over Bluetooth LE
- MIDI over USB connection
- Routes virtual MIDI ports
- Connects to other MIDI devices wirelessly
- Remembers routing settings
- Works in background
- MIDI over Lightning cable support
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midimittr is a simple utility to deliver the experience of low-latency MIDI over Bluetooth LE/USB to iOS Music apps that support MIDI. To achieve this, midimittr is routing the virtual ports of supported applications to Bluetooth and/or the USB Ports. If your favourite application is supporting MIDI, it will most likely work with midimittr. Bluetooth over MIDI is supported in iOS 8+ and a feature of OS X Yosemite 10.10+. For more information please check out the support page. ---- - Connect to other Bluetooth MIDI Hardware, iOS or macOS devices wirelessly - Remembers previous routing settings for an uninterrupted workflow - Works in background - Get even lower latency with MIDI over Lightning cable* - Support for both iPad and iPhone ---- *For MIDI over Lightning cable please download the tool from the support page.
Screenshots
Verdict
The clearest difference is update cadence: midimittr at every 2 weeks against MIDI Wrench's every 5 months. MIDI Wrench's advantage is iOS requirement (9.0 vs 12.0). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for MIDI Wrench against 4.5 for midimittr. Both are backed by a comparable volume of ratings — 71 and 54 respectively. Written reviews are what separate them: 89% of MIDI Wrench's written reviews are positive against 91% of midimittr's.
MIDI Wrench ships an update every 5 months, midimittr every 2 weeks. Both last shipped on November 1, 2026.
| Parameter | MIDI Wrench | midimittr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (71 ratings) — better | 4.5 (54 ratings) |
| Positive reviews | 88.9% of reviews | 91.0% of reviews — better |
| Number of ratings | 71 — better | 54 |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 21 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Schoenebeck d/b/a Crudebyte | Matthias Frick |
Customer experience
MIDI Wrench
midimittr
User reviews
MIDI Wrench
From 71 App Store ratingsWhat we love
- 👍 Essential for MIDI troubleshooting
- 👍 Free and maintained
- 👍 Reveals MIDI activity
- 👍 Solves connection issues
- 👍 Easy to use
Room to improve
- ❌ No sound output
- ❌ Cannot import .mid files
- ❌ Small keyboard keys
- ❌ Limited MIDI I/O selection
- ❌ Few features
midimittr
From 54 App Store ratingsWhat we love
- 🚀 Seamless MIDI connection
- 👍 Easy to use
- 💡 Solves connectivity problems
- 💰 Free of charge
- 🔌 Works with USB and Bluetooth
Room to improve
- 🐛 Crashes on M1 Mac
- ❓ No manual or instructions
- 😞 Developer unresponsive
- ⚠️ Bluetooth connection issues
- 🎛️ Toggles not visible on iPad mini
Bugs and requests
MIDI Wrench
Reported bugs
6 issues- No sound at all
- No audio when pressing keys
- Cannot clear screen, only pause
- Connection sometimes disconnects after a break
- App needs to be updated by developers
Show 1 moreShow fewer
- May slow down phone due to lack of update
Requested features
19 requests- Display raw MIDI messages (hex)
- Manually construct/send MIDI messages (hex/simplified)
- Import .mid files
- Audio output for testing
- Clear screen functionality
Show 14 moreShow fewer
- Larger or adjustable keyboard size
- MIDI out capabilities (USB/network)
- Filter out Active Sense and clock signals
- Send data out of any MIDI CC number
- Change key range
- Set keys to different scales
- Control desktop VSTs
- In-app purchase for additional options
- MIDI patchbay functionality
- Echo all inputs to outputs for routing
- Show data source
- Filter by device
- Update for newer iOS versions
- Regularly schedule maintenance time
midimittr
Reported bugs
6 issues- 'IOS Audio' crashes app on M1 Mac
- Disables iPad as audio input on M1 Mac
- Connection problem with older iOS and Yamaha MD-BT01
- Toggles not visible on iPad mini
- App keeps giving pop-ups asking to turn on Bluetooth
Show 1 moreShow fewer
- Only one device gets MIDI back when two are connected
Requested features
5 requests- Auto-reconnect for Bluetooth
- Logging function with freeze/save and filter
- Dark mode
- Audio transmitting as in-app purchase
- Option for client BT connections to auto-connect
In-app purchases
MIDI Wrench
No in-app purchases
midimittr
No in-app purchases
Questions
Is MIDI Wrench free?
Is midimittr free?
Which has better reviews, MIDI Wrench or midimittr?
Do MIDI Wrench or midimittr have ads?
Which is updated more often, MIDI Wrench or midimittr?
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