# VAPolyQuad vs JAX ONE XModulator Extended

VAPolyQuad and JAX ONE XModulator Extended both sit at 4.0 stars, but that hides the real split: 50% of JAX ONE XModulator Extended's written reviews are positive against 0% of VAPolyQuad's. JAX ONE XModulator Extended also leads on update cadence (every 4 days vs every 22 months) and price ($12.99 vs $14.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

VAPolyQuad costs $14.99 and JAX ONE XModulator Extended $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.0 for VAPolyQuad against 4.0 for JAX ONE XModulator Extended. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews are what separate them: 0% of VAPolyQuad's written reviews are positive against 50% of JAX ONE XModulator Extended's.

VAPolyQuad ships an update every 22 months, JAX ONE XModulator Extended every 4 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | VAPolyQuad | JAX ONE XModulator Extended |
| --- | --- | --- |
| Price | $14.99 | **$12.99** |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/vapolyquad/id6504518079/reviews) | [4.0 (2 ratings)](https://appshunter.io/ios/app/jax-one-xmodulator-extended/id6505114652/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 16 MB | 32 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [Jens Guell](https://appshunter.io/developer/1195004865) |

## What reviewers say

### VAPolyQuad

[App page](https://appshunter.io/ios/app/vapolyquad/id6504518079)

Create rich, analog-style music with this powerful polyphonic synthesizer. Explore a vast array of sound-shaping tools, including multiple oscillators, filters, and effects. Program intricate melodies and rhythms with the built-in sequencer, and seamlessly share projects across your Apple devices.

**Highlights:** Virtual analog polyphonic synthesizer, Up to 8 voice polyphony, Four oscillators per voice, Multiple resonant filters, Built-in effects suite, 16-bar sequencer with piano roll, Audio Unit Extension (AUv3) support

**Features:** Vision Pro support

**In-app purchases:** none


### JAX ONE XModulator Extended

[App page](https://appshunter.io/ios/app/jax-one-xmodulator-extended/id6505114652)

This app offers a classic ring modulator effect with an analog-modeled unison oscillator for sound modulation and sonic refinement. It functions as a creative sound design tool and special effect processor with a unique 3D modular rack interface.

**Highlights:** Analog modeled ring modulator, Unison oscillator modulation source, Creative sound design tool, Special effect processor, 3D modular rack user interface, AUv3 app extension

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VAPolyQuad free?

VAPolyQuad costs $14.99, with no in-app purchases.

### Is JAX ONE XModulator Extended free?

JAX ONE XModulator Extended costs $12.99, with no in-app purchases.

### Which has better reviews, VAPolyQuad or JAX ONE XModulator Extended?

VAPolyQuad and JAX ONE XModulator Extended are both rated 4.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do VAPolyQuad or JAX ONE XModulator Extended have ads?

Neither VAPolyQuad nor JAX ONE XModulator Extended shows ads.

### Which is updated more often, VAPolyQuad or JAX ONE XModulator Extended?

VAPolyQuad ships an update every 22 months, and JAX ONE XModulator Extended every 4 days. Most recently, VAPolyQuad was updated on October 24, 2026 and JAX ONE XModulator Extended on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*