# Stereo Modulator vs JAX Stereo Tool (AU)

The clearest difference is rating: Stereo Modulator at 5.0 against JAX Stereo Tool (AU)'s 4.4. Stereo Modulator also leads on review sentiment (100% vs 80%) and price ($2.99 vs $5.99). JAX Stereo Tool (AU)'s advantage is update cadence (every 11 days vs every 3 months) and ratings volume (27 vs 3). On ads, in-app purchases, monetization model and device support there is nothing between them.

Stereo Modulator costs $2.99 and JAX Stereo Tool (AU) $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stereo Modulator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: JAX Stereo Tool (AU) has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Stereo Modulator's written reviews are positive against 80% of JAX Stereo Tool (AU)'s.

Stereo Modulator ships an update every 3 months, JAX Stereo Tool (AU) every 11 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Stereo Modulator | JAX Stereo Tool (AU) |
| --- | --- | --- |
| Price | **$2.99** | $5.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stereo-modulator/id1370816026/reviews)** | [4.4 (27 ratings)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302/reviews) |
| Number of ratings | 3 | **27** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | Paid | Paid |
| Size | 2 MB | 10 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [Jens Guell](https://appshunter.io/developer/1195004865) |

## What reviewers say

### Stereo Modulator

[App page](https://appshunter.io/ios/app/stereo-modulator/id1370816026)

This audio effect plugin transforms mono sound into stereo, adding width and depth. It uses micro-delays to create a natural sense of space, with optional LFO modulation for a Leslie speaker-like effect without pitch shifting. Ideal for creating separation in mixes, especially for guitars and vocals.

**Highlights:** Mono to stereo conversion, Adjustable stereo width, Optional LFO modulation, Micro-delay de-correlators, Creates natural spatial depth, No pitch shifting or echo

**Features:** macOS Compatibility

**In-app purchases:** none


### JAX Stereo Tool (AU)

[App page](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302)

This audio processing tool allows users to visually manipulate the stereo image of digital audio. It functions as a mastering effect, enabling real-time adjustment of stereo width and the recovery of mono compatibility. The app includes a correlograph for visual feedback and optimization.

**Highlights:** Visual stereo image manipulation, Real-time stereo width adjustment, Mono compatibility recovery, Integrated correlograph for visual feedback, Audio Unit (AUv3) plugin format, System-wide availability

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stereo Modulator free?

Stereo Modulator costs $2.99, with no in-app purchases.

### Is JAX Stereo Tool (AU) free?

JAX Stereo Tool (AU) costs $5.99, with no in-app purchases.

### Which has better reviews, Stereo Modulator or JAX Stereo Tool (AU)?

Stereo Modulator is rated higher. Stereo Modulator averages 5.0 out of 5 from 3 ratings, while JAX Stereo Tool (AU) averages 4.4 from 27 ratings.

### Do Stereo Modulator or JAX Stereo Tool (AU) have ads?

Neither Stereo Modulator nor JAX Stereo Tool (AU) shows ads.

### Which is updated more often, Stereo Modulator or JAX Stereo Tool (AU)?

Stereo Modulator ships an update every 3 months, and JAX Stereo Tool (AU) every 11 days. Most recently, Stereo Modulator was updated on October 24, 2026 and JAX Stereo Tool (AU) on October 24, 2026.

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