Midiflow vs MidiMixer for AUM Auv3 Plugin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Midiflow
This app enables seamless MIDI data transfer between different applications on your device. It allows for app synchronization, routing MIDI from sequencers to synths, and assigning keyboard zones. Users can save and recall configurations, and monitor MIDI activity.
- App-to-app MIDI routing
- MIDI clock synchronization
- Channel filtering and remapping
- Note and velocity manipulation
- Custom virtual MIDI ports
- Preset saving and recall
- Controller filtering and remapping (in-app purchase)
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Midiflow allows you to send MIDI from app to app in a similar way to what you already do with audio. That way, you can sync apps with each other or send MIDI parts from a sequencer app to different synth apps. You can also route the MIDI from your keyboard to apps and assign different key zones to them. Different settings can be stored as a preset, recalled later and inserted into another preset. Furthermore, all MIDI transfer can be monitored in order to find problems or just to learn what MIDI is doing (normally) behind the scenes. Important news: There is a full documentation on the Midiflow website now! HOW DOES IT WORK? Midiflow allows you to create multiple routings. Each routing receives MIDI data on its source and sends it to its destination. The selectable sources and destinations include your CoreMIDI compatible MIDI interface and other apps if they provide a virtual MIDI port. You can also create custom ports that can be used by other apps to receive data from Midiflow or send data to it. A routing also has a modifier which allows you to filter data or modify it. That way, you can transpose notes, limit them to a key range, change the MIDI channel of the incoming data, etc. (see the feature list below). LIST OF FEATURES + MIDI clock – specify tempo and your apps will be in sync + Channel filtering and remapping + Velocity filtering – a routing is only active for notes in a given velocity range + Note shift – shift all notes by a given number of half-tone steps + Note remapping – shift each note individually + Velocity remapping – apply a velocity curve, transform to fixed velocity, or specify the map value by value. In the latter case, you can also export the mapping to the clipboard, edit it in another app like Apple Numbers, and paste it back in Midiflow + Filtering out Clock or dividing the tempo into subdivisions + Filtering out SysEx + Connect to other iPads/iPhones via Bluetooth MIDI (iOS8 or higher) + Save a configuration as a preset, which can be recalled later or inserted into another preset + Custom virtual MIDI ports, which can be selected in other apps as a source or destination + Control aspects of Midiflow via MIDI. For example, select presets or control the clock with any MIDI command + Launch your synth apps from Midiflow (works with an increasing number of apps) + Sharing your configurations ADDITIONAL FEATURES (available as an In-app purchase) + Filtering and remapping of controllers – transform (a) the controller type, e.g. from CC1 to pitch-bend or note value to CC1, and (b) transform the value in several ways: as a linear remapping from an input range to an output range, as a curve, or as a value by value list. In the latter case, you can also export the mapping to the clipboard, edit it in another app like Apple Numbers, and paste it back in Midiflow. This allows you to create very sophisticated remappings. + Controller conditions – adjust your routings depending on other MIDI messages. This allows you to create sophisticated behavior within your setup by switching routings on and off. DOES MIDIFLOW WORK WITH MY SYNTH APPS? Midiflow works with every app that has a correct MIDI implementation. In the best case, it has an own virtual MIDI port and can be configured so that it receives MIDI only on that port. Unfortunately, some apps don't have that, but can at least be restricted to one MIDI channel. In that case, you can send to that channel on the global MIDI port "Network Session 1". If you can't select a channel either, then the app won't work with Midiflow. There is a tutorial video on www.midiflow.com that explains this in more detail.
MidiMixer for AUM Auv3 Plugin
This audio plugin for AUM allows precise control over your music mix and automation recording. Create up to 8 snapshots of your mixing desk, smoothly fade between them, and record real-time control movements or draw them in a graphical editor. It supports up to 12 AUM channels and offers fader lock for simultaneous control.
- 8 mixer snapshots with smooth fades
- Real-time control change recording
- Graphical automation editor
- Clipboard for automation sections
- Control up to 12 AUM channels
- Fader lock for simultaneous control
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1st Sept: This version adds scene support for compatability with future versions of iOS. MidiMixer is an AUv3 plugin specifically designed for AUM which allows you to control your mix and record automation synced to AUM's timeline. You can control up to 12 AUM channels at once and create up to 8 snapshots of the mixing desk. You can smoothly fade from one snapshot into another at the touch of a button and even record these transitions as part of the automation for your song. Automation recording is a big part of MidiMixer, and as such can record real-time movement of controls or add them directly to the visual editor. Editor tools allow you to draw automation for each control in real time as your song plays. MidiMixer ships with a couple of default AUM session templates that will help you quickly configure AUM and MidiMixer ready to create your new song. MidiMixer works by sending control messages to AUM. It relies on the default settings for AUM which makes setup very quick and easy. By default, you have control over 12 AUM tracks and a single group track for overall volume. You can control AUM's fader, pan, mute and solo settings for each of the 12 channels. We also provide a user option which allows you to send custom data to control other AUM settings (or a piece of MIDI equipment of your choice). Features: • 8 mixer snapshots with smooth fade over 0-5s. • Record real-time control changes. • Graphical editor with editing tools. • Clipboard functionality for copying sections of automation. • 2 default AUM templates provided. • Fader lock allowing control of all faders at once. • Control up to 12 AUM channels. • Load and Save mixes. • Full song state saving. Checkout the 'Paul the Musicman' YouTube channel for a preview of this app in action. Please Note: Although this plugin can technically be loaded into any DAW, it was designed purely for use in AUM and as such its use outside of AUM is extremely limited. Also not recommended for use on iPhones with less than 6.5" display.
Screenshots
Verdict
The clearest difference is rating: MidiMixer for AUM Auv3 Plugin at 4.7 against Midiflow's 4.0. MidiMixer for AUM Auv3 Plugin also leads on in-app purchases (none vs 3). Midiflow's advantage is chart position (#137 vs unranked) and price ($7.99 vs $9.99). On review sentiment, ratings volume, update cadence and ads 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
Midiflow costs $7.99 and MidiMixer for AUM Auv3 Plugin $9.99 up front. Midiflow sells 3 one-off in-app purchases. MidiMixer for AUM Auv3 Plugin asks for nothing beyond the download.
MidiMixer for AUM Auv3 Plugin holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 39 and 26 respectively. Written reviews point the same way: 59% of Midiflow's written reviews are positive against 63% of MidiMixer for AUM Auv3 Plugin's.
Midiflow ships an update every 5 weeks, MidiMixer for AUM Auv3 Plugin every 3 weeks. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.
| Parameter | Midiflow | MidiMixer for AUM Auv3 Plugin |
|---|---|---|
| Price | $7.99 — better | $9.99 |
| Rating | 4.0 (39 ratings) | 4.7 (26 ratings) — better |
| Positive reviews | 58.8% of reviews | 62.5% of reviews — better |
| Number of ratings | 39 — better | 26 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | #137 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | +4 |
| Developer | Johannes Doerr | 4Pockets.com |
Customer experience
Midiflow
MidiMixer for AUM Auv3 Plugin
Bugs and requests
Midiflow
Reported bugs
45 issues- Frequent crashes while editing CC map
- Mapped CCs dropped during performance
- App does not open on iOS 10
- Layout issues on iPhone 11 (no 'Done' button)
- App stops working, opens for 2 seconds then closes
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- Bug in Velocity remapping: 'Reset curve' makes screen blank
- Note Off messages have vel value = 0
- App simply doesn't start after paid updates
- No 'Done' or 'Back' button visible in menus
- App crashes when editing a song and saving
- Edits lost after crash
- Backup song lost after crash
- App crashes when trying to remap
- App crashes on first note when Roli Seaboard is connected
- App closes when searching for nearby devices
- App closes when selecting 'find nearby devices' or 'advertise device'
- App doesn't work with iOS 14
- App doesn't work with iOS 15
- App doesn't work with iOS 16
- App crashes on iPad 5 after update
- App closes immediately after starting
- No back or cancel button, stuck in menus
- CC control mapping issues (e.g., CC7 dropped)
- Bluetooth connectivity crashes the app
- Program Change to MIDI note remapping not working
- App doesn't search for nearby devices
- App force closes when remapping
- GUI problems with returning to main page
- App crashes on first note
- App doesn't load after paid updates
- No return button
- Layout issues on iPhone
- Filter out Note Off messages functionality missing
- Frequent crashes while editing
- Mapped CCs dropped during performance
- Note off velocities are ignored
- App doesn't open
- App closes immediately
- App doesn't work with SampleTank in background
- Remapping doesn't work properly
- MIDI messages blocked or morphed
- Remapping adds code instead of replacing
- Fixed MIDI channels in Korg iPolysix
- Does not work with Arturia iMini/iProphet
- App shutdown on iPad 2
Requested features
6 requests- AUv3 plugin version
- Mass sharing of songs
- Dark mode
- Ability to map multiple notes from one key press
- Individual transpose for split zones
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- More MIDI features controllable by external hardware
MidiMixer for AUM Auv3 Plugin
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Midiflow
- Send Controller On Load$1.99
- Controller Conditions$2.99
- Controller Remapping$3.99
MidiMixer for AUM Auv3 Plugin
No in-app purchases
Questions
Is Midiflow free?
Is MidiMixer for AUM Auv3 Plugin free?
Which has better reviews, Midiflow or MidiMixer for AUM Auv3 Plugin?
Do Midiflow or MidiMixer for AUM Auv3 Plugin have ads?
Which is updated more often, Midiflow or MidiMixer for AUM Auv3 Plugin?
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