Jacquardi4 vs Velvet Vocoder
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.
Velvet Vocoder
This app transforms your device into a real-time vocal studio, offering auto-tune, harmony generation, and vocoder effects. It allows for pitch correction, adding multiple in-key voices, and controlling vocal tuning with a MIDI keyboard.
- Real-time auto-tune
- Automatic diatonic harmonies
- Vocode mode with MIDI control
- Classic vocoder synth layer
- Adjustable key and scale
- Vocal FX suite
- AUv3 plugin support
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VV17 turns your iPhone and iPad into a real-time vocal studio — auto-tune, harmony, and vocoder in one app. Sing or speak into your device and VV17 corrects your pitch to any key and scale as you go. Turn on harmony and it stacks up to four in-key voices under your lead, TC-Helicon style. Switch to Vocode mode and play a MIDI keyboard to drive the tuning by hand — your lead locks to the nearest held note while the others become live harmonies. FEATURES • Real-time auto-tune with adjustable correction amount and speed, from natural to hard-tuned • Automatic diatonic harmonies — stacked in-key thirds, 1 to 4 voices • Infinite mode swaps the harmony stack for a shimmering harmonic series • Vocode mode: control the tuner live from held MIDI notes • Classic vocoder / talkbox synth layer driven by your voice • Choose your key and scale, or explore just-intonation temperaments • Vocal FX: spread, humanize, sibilance, and response controls • Presets to get you started, including lush choir and modern hard-tune rigs • Works standalone or as an Audio Unit (AUv3) plugin inside GarageBand, AUM, Cubasis, and other hosts All processing happens on your device. No account, no sign-up, no data collection.
Screenshots
Verdict
The clearest difference is price: Jacquardi4 at $5.99 against Velvet Vocoder's $24.99. Velvet Vocoder's advantage is iOS requirement (12.0 vs 15.0). On 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 Velvet Vocoder $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Jacquardi4 | Velvet Vocoder |
|---|---|---|
| Price | $5.99 — better | $24.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Satoshi Kajii | Paul Wand |
In-app purchases
Jacquardi4
No in-app purchases
Velvet Vocoder
No in-app purchases









