MIDI Check vs DigiKeys AUv3 Sequencer Plugin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI Check
Diagnose and troubleshoot MIDI connections on your devices. View active connections, monitor incoming messages, and filter unwanted data. Record MIDI messages in the background with a clear, intuitive interface.
- Detect active MIDI connections
- View incoming MIDI messages
- Send test MIDI notes and control messages
- Filter MIDI channels and messages
- Filter MIDI System Exclusive messages
- Record MIDI messages in background mode
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*Diagnose The Problem & Find the Solution* Current Features: + See/detect, hardware/virtual active MIDI connections. + See all incoming messages. + Send test notes on/off and control messages. + MIDI Channel filter: Eliminate messages comes from unwanted MIDI channels. + MIDI Message filter: Eliminate unwanted messages (e.g. Note on, Note off, Pitch wheel etc.) + MIDI System Exclusive filter: Eliminate MIDI Clock and many other unwanted MIDI messages. + MIDI Delta-Time Added: See the time spent between messages + Record Incoming MIDI messages in background mode + 100% vectoriel cristal clear gorgeous user interface. + Slide the glass through the face, activate the desired filter with a gesture. **NOTE** Yamaha Bluetooth MD-BT01 users -> According to Yamaha user manual; all MIDI related application should be closed before bluetooth midi connection. Run the MIDI Check after connection established. If not you'll not be able to see the Yamaha midi connection on the app. This is not an application's issue. Because Yamaha use own BT protocol. Upcoming Features: - Music keyboard improvement. - Custom preset message send possibility.
DigiKeys AUv3 Sequencer Plugin
This is a pattern-based MIDI sequencer plugin for AUv3 compatible hosts. It can drive external MIDI instruments or its internal sample-based audio engine. Create looped patterns, chain them into songs, and experiment with real-time performance modes.
- Pattern-based MIDI sequencing
- Internal sample-based audio engine
- 16 MIDI tracks per pattern
- Song creation up to 256 patterns
- Random pattern generator
- Live matrix performance mode
- Multi-Bus output support
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DigiKeys is an AUv3 compatible MIDI sequencer plugin for AUM or other AUv3 compatible host applications. DigiKeys is a pattern based sequencer which can be used to drive either external MIDI based AUv3 instruments, or the internal sample based audio engine. It can also be used as a 16 channel multi-timbral sound source accepting MIDI data on each of the 16 MIDI channels and routing to 16 internal instruments. This flexible design allows you to experiment with pattern based song construction using the DigiKeys sound engine, then map to external MIDI based synth engines once an idea needs expanding. The program was created specifically for AUM, but should function fine under any DAW of your choice (routing options permitting). The advantage of AUM is its unlimited routing flexibility, and the ability to split MIDI output in order to feed multiple AV3 sound sources DigiKeys allows you to create looped patterns which can later be chained into songs. Each pattern has 16 tracks (one for each MIDI channel) which can be up to 32 steps in length. Each track can have its own playback speed, transposition and effects routings. You can chain up to 256 of these patterns together into a song, and since each song is tied to a scale, you can use the transpose function to quickly create chord changes without needing to redesign your patterns. DigiKeys was designed to drive other MIDI compatible AUv3 plugins, but comes equiped with its own internal synth engine with over 100 custom presets. If you own the 4Pockets Chameleon sampler plugin, DigiKeys will auotmatically make those instruments available to you, so its easy to expand the library of instruments using Chameleon. The app has its own custom MIDI mixer, which controls incoming / outgoing MIDI velocity levels rather than traditional audio levels. This allows you to control relative volumes of internal as well as external MIDI instruments. It also allows DigiKeys to be used as a multi-timbral sound source with level mixing, by routing MIDI data on each of the 16 incoming ports to seperate instruments. DigiKeys features a sophisticated random pattern generator capable of taking advantage of random velocities, probability, note length, sub beats and reverse hits. It can even randomize targetted notes that comply to a chord in the song scale. The latest update introduces a live matrix performance mode that lets you mix tracks from different patterns in real time, creating scenes to aid your performance. Patterns and scenes can be triggered remotely from MIDI equipment sending simple note data on MIDI channel 16. Also recently added is the ability to route internal sound to different output busses for adding external effects in AUM. We also include 3 global effects, reverb, chorus and digital delay which allow per track routing. Features: • 16 MIDI tracks per pattern. • Randomize Patterns. • Up to 32 beats per pattern. • Songs up to 256 patterns in length. • Supports Multi-Bus out in AUM. • Definable track muting, repeat length and transposing per song step. • Selectable Key, Scale and Chords to use as guides. • Various edit modes allowing fades and drum rolls. • Supports Reverse Mode, Probability, Triplets etc.. • Ability to override the scale for drum tracks. • 16 channel Mixer. • Track Mutes and Solo options. • 8 band EQ. • Build in Delay, Reverb and Chorus. • Live Matrix. (iPad Only) • Remote pattern switching. • Chamelon Instrument Compatability. • Per pattern Automation. • Comprehensive clipboard functionality. • Local and Remote MIDI Sync. • Real time and Step pattern recording. • HTTP interface for backup / restore of songs.
Screenshots
Verdict
The clearest difference is review sentiment: DigiKeys AUv3 Sequencer Plugin at 79% against MIDI Check's 0%. DigiKeys AUv3 Sequencer Plugin also leads on rating (4.3 vs 4.0) and ratings volume (19 vs 4). MIDI Check's advantage is price ($1.99 vs $9.99) and update cadence (every 4 days vs every 10 days). On ads, in-app purchases, monetization model and device support 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
MIDI Check costs $1.99 and DigiKeys AUv3 Sequencer Plugin $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
DigiKeys AUv3 Sequencer Plugin holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 4 and 19 respectively. Written reviews point the same way: 0% of MIDI Check's written reviews are positive against 79% of DigiKeys AUv3 Sequencer Plugin's.
MIDI Check ships an update every 4 days, DigiKeys AUv3 Sequencer Plugin every 10 days. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.
| Parameter | MIDI Check | DigiKeys AUv3 Sequencer Plugin |
|---|---|---|
| Price | $1.99 — better | $9.99 |
| Rating | 4.0 (4 ratings) | 4.3 (19 ratings) — better |
| Positive reviews | 0.0% of reviews | 78.6% of reviews — better |
| Number of ratings | 4 | 19 — better |
| Update frequency | Every 4 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 13 |
| Further details — not scored | ||
| Size | 35 MB | 307 MB |
| Age rating | 4+ | 4+ |
| Developer | DejaWorks LTD | 4Pockets.com |
Customer experience
MIDI Check
DigiKeys AUv3 Sequencer Plugin
In-app purchases
MIDI Check
No in-app purchases
DigiKeys AUv3 Sequencer Plugin
No in-app purchases
Questions
Is MIDI Check free?
Is DigiKeys AUv3 Sequencer Plugin free?
Which has better reviews, MIDI Check or DigiKeys AUv3 Sequencer Plugin?
Do MIDI Check or DigiKeys AUv3 Sequencer Plugin have ads?
Which is updated more often, MIDI Check or DigiKeys AUv3 Sequencer Plugin?
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