Comparison

ab EQ X vs Jacquardi4

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ab EQ X

This application offers a parametric equalizer that operates with Ambisonics technology. It allows independent equalization of three dimensional poles (LEFT, RIGHT, FRONT) with five bands each, supporting various filter types and a DRY/WET mix control.

Highlights
  • Ambisonics-based equalization
  • 3 independent dimensional poles (LEFT, RIGHT, FRONT)
  • 5 bands per pole
  • Multiple filter types (HP, LP, Shelf, Bell, Notch)
  • DRY/WET MIX control
Features
Read full description

An Equaliser that works in Ambisonics under the hood. Three different dimensional poles can be equalised independently (LEFT, RIGHT, FRONT) with unique results! - 5 Bands per dimensional poles. - Each band can be High Pass, Low Pass, High Shelf, Low Shelf, Notch, or Bell. - DRY/WET MIX control

About

Jacquardi4

Read full description

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.

Screenshots

ab EQ X3 screens
Jacquardi42 screens

Verdict

The call

The clearest difference is update cadence: Jacquardi4 at weekly against ab EQ X's every 6 months. On price, 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

CostPrice · In-app purchases · Ads · Monetization

ab EQ X costs $5.99 and Jacquardi4 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ab EQ X ships an update every 6 months, Jacquardi4 weekly. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
ab EQ X versus Jacquardi4: the parameters behind the verdict, then further details
Parameterab EQ XJacquardi4
Price$5.99$5.99
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1515.0
Further details — not scored
Size12 MB12 MB
Age rating4+4+
DeveloperAlejandro Cabrera ZunigaSatoshi Kajii

In-app purchases

None

ab EQ X

No in-app purchases

None

Jacquardi4

No in-app purchases

Questions

Is ab EQ X free?
ab EQ X costs $5.99, with no in-app purchases.
Is Jacquardi4 free?
Jacquardi4 costs $5.99, with no in-app purchases.
Do ab EQ X or Jacquardi4 have ads?
Neither ab EQ X nor Jacquardi4 shows ads.
Which is updated more often, ab EQ X or Jacquardi4?
ab EQ X ships an update every 6 months, and Jacquardi4 weekly. Most recently, ab EQ X was updated on October 31, 2026 and Jacquardi4 on October 31, 2026.

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