# JAX Stereo Tool (AU) vs NuRack Auv3 FX Processor

The clearest difference is price: JAX Stereo Tool (AU) at $5.99 against NuRack Auv3 FX Processor's $12.99. NuRack Auv3 FX Processor's advantage is rating (4.7 vs 4.4). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

JAX Stereo Tool (AU) costs $5.99 and NuRack Auv3 FX Processor $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NuRack Auv3 FX Processor holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 27 and 41 respectively. Written reviews point the same way: 80% of JAX Stereo Tool (AU)'s written reviews are positive against 84% of NuRack Auv3 FX Processor's.

JAX Stereo Tool (AU) ships an update every 11 days, NuRack Auv3 FX Processor every 3 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | JAX Stereo Tool (AU) | NuRack Auv3 FX Processor |
| --- | --- | --- |
| Price | **$5.99** | $12.99 |
| Rating | [4.4 (27 ratings)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302/reviews) | **[4.7 (41 ratings)](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960/reviews)** |
| Number of ratings | 27 | **41** |
| Positive reviews | 80.0% of reviews | **84.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 10 MB | 26 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### 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


### NuRack Auv3 FX Processor

[App page](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960)

Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.

**Highlights:** Design custom effects racks, Over 80 audio and MIDI building blocks, Full routing control (series/parallel), Customizable interface builder, Seamless effect switching, 3 independent audio racks mode, Extensive automation options

**In-app purchases:** none


## Frequently asked questions

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

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

### Is NuRack Auv3 FX Processor free?

NuRack Auv3 FX Processor costs $12.99, with no in-app purchases.

### Which has better reviews, JAX Stereo Tool (AU) or NuRack Auv3 FX Processor?

NuRack Auv3 FX Processor is rated higher. JAX Stereo Tool (AU) averages 4.4 out of 5 from 27 ratings, while NuRack Auv3 FX Processor averages 4.7 from 41 ratings.

### Do JAX Stereo Tool (AU) or NuRack Auv3 FX Processor have ads?

Neither JAX Stereo Tool (AU) nor NuRack Auv3 FX Processor shows ads.

### Which is updated more often, JAX Stereo Tool (AU) or NuRack Auv3 FX Processor?

JAX Stereo Tool (AU) ships an update every 11 days, and NuRack Auv3 FX Processor every 3 weeks. Most recently, JAX Stereo Tool (AU) was updated on October 28, 2026 and NuRack Auv3 FX Processor on October 25, 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.*