Jacquardi4 vs Midiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jacquardi4
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Concept: “Jacquardi4” is an AUv3 instrument that does not make any sounds but can send out 4 analog-like “Envelope” signals via MIDI control changes (MIDI CC). That is, the app contains 4 MIDI modules of envelope generator. The user can use them for modulating any parameter of 3rd-party’s plugins that can be assigned to MIDI CC , for example, cutoff frequency. System Requirements: AUv3 host that has a flexible capability of MIDI routing (AUM, apeMatrix, LoopyPro, etc). Usage: Just assign MIDI keyboard to Jacquardi4's MIDI IN (it needs to trigger Jacquardi4) and assign Jacquardi4's MIDI OUT to 3rd party's plugins. Explanation of sliders: Channel: determines MIDI channel. Control Rate: determines the resolution of MIDI processing. Higher value, higher resolution. Active: turn on or off the module. Useful when using MIDI learn functionality of 3rd party plugin. MIDI CC: determines MIDI control number. (text-editable) Amp: determines amplitude in dB Offset: determines an initial value. Attack: attack value. Decay Time: decay time value. Decay Curve: decay curve value. Sustain: sustain value. Release: release value. Explanation of Preset File System: At first make a new bank folder, in which you can save a preset file. And push "Save As" button. Also the user can export or import preset files.
Midiary
This app allows musicians to practice MIDI files by slowing down passages, looping sections, and muting specific instrument parts. It also offers tools to edit MIDI data, analyze chords and keys, and export audio or MIDI files.
- Practice difficult passages with speed and key adjustments
- Loop specific bars for focused repetition
- Mute or solo instrument parts
- Analyze estimated keys and chords
- Edit MIDI notes, tempo, and resolution
- Export audio (M4A/WAV) and MIDI files
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Turn a MIDI file into a focused rehearsal. Slow down a difficult passage, loop its bars, mute your part and practise with the rest of the arrangement. Keep the imported original intact while you explore, edit and export. YOUR PRACTICE PLAN Save named sections with their bar range, speed, key shift, muted and solo parts, and rehearsal notes. Recall a section after reopening the app; it pauses at the beginning, ready when you are. Move to the previous or next passage without shrinking the loop. Reorder your sections and share a text checklist with their settings and notes. Saved sections stay on this device and belong to the exact musical revision. If you edit the music, return to that revision or save a new section. The shared checklist contains no audio or MIDI and is not a backup. HEAR AND UNDERSTAND YOUR MUSIC - Change playback speed from 25% to 200%, shift the key up or down 12 semitones, and mute or solo individual parts. Drums stay untransposed. - See an estimated key and chords by bar. Tap a bar to play from it or touch and hold to loop that bar. Share the chord chart. - Follow embedded lyrics and .kar files during playback. - Inspect tracks, instruments, channels, note ranges, tempo changes, time signatures, markers and MIDI events. Explore a piano roll with bars and beats. EDIT WITHOUT LOSING THE ORIGINAL Convert format 1 to format 0, split tracks by channel, change tempo or resolution, and set a channel's instrument. Review edits before saving. Select notes, transpose, adjust velocity, quantise timing or edit an individual note. Extract a passage and chosen parts to a new MIDI file. Groove Bench captures timing and velocity from a passage for reuse on another part. The imported MIDI bytes remain unchanged. Local editing sessions retain undo and redo within their storage limits. Restore the original as an undoable step. PLAY AND EXPORT Render M4A or WAV with your current speed, key and mix. Share edited MIDI, the untouched original, a cleaned copy or an event CSV. Send MIDI to a compatible USB or Bluetooth instrument; SysEx is off unless you enable it. Shortcuts actions support file information, conversion, transpose and tempo. KNOW WHAT TO EXPECT Built-in voices sketch instrument families and drums; they do not reproduce a complete General MIDI sound set. Chords and keys are estimates. Saved bar sections require a metrical, non-sequential file; SMPTE timing and format 2 sequences retain their inspection and playback workflows. Imports support up to 8 MB, 1,024 tracks and 100,000 events. Playback runs in the foreground. Start with your own .mid, .midi or .kar file, or use the included piano and band samples. Interface and screenshots are in English. One purchase. No subscription, in-app purchases, advertising or account. Files and practice sections stay on your device unless you export or share them. No microphone recording.
Screenshots
Verdict
The clearest difference is price: Midiary at $3.99 against Jacquardi4's $5.99. Jacquardi4's advantage is iOS requirement (15.0 vs 17.0). On update cadence, ads, in-app purchases 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
Jacquardi4 costs $5.99 and Midiary $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly weekly. Both last shipped on November 10, 2026.
| Parameter | Jacquardi4 | Midiary |
|---|---|---|
| Price | $5.99 | $3.99 — better |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Satoshi Kajii | Robert Corbin |
In-app purchases
Jacquardi4
No in-app purchases
Midiary
No in-app purchases









