# JAX Stereo Tool (AU) vs Piano Visualizer

The clearest difference is rating: JAX Stereo Tool (AU) at 4.4 against Piano Visualizer's 1.0. JAX Stereo Tool (AU) also leads on update cadence (every 11 days vs every 3 months) and price ($5.99 vs $9.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

JAX Stereo Tool (AU) costs $5.99 and Piano Visualizer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JAX Stereo Tool (AU) holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: JAX Stereo Tool (AU) has 27 ratings behind it against 1, so its average is the more settled of the two.

JAX Stereo Tool (AU) ships an update every 11 days, Piano Visualizer every 3 months. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | JAX Stereo Tool (AU) | Piano Visualizer |
| --- | --- | --- |
| Price | **$5.99** | $9.99 |
| Rating | **[4.4 (27 ratings)](https://appshunter.io/ios/app/jax-stereo-tool-au/id1473390302/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/piano-visualizer/id6739029911/reviews) |
| Number of ratings | **27** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 10 MB | 247 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [Weida Fan](https://appshunter.io/developer/1622755748) |

## 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


### Piano Visualizer

[App page](https://appshunter.io/ios/app/piano-visualizer/id6739029911)

Experience piano music like never before with detailed 3D animations of a grand piano's inner workings. Watch any music or MIDI file come to life with real-time, mechanically accurate visuals, including augmented reality and tactile feedback options.

**Highlights:** Mechanically accurate 3D grand piano model, Versatile audio and MIDI input, Live, real-time animation, Transparent view mode, Augmented Reality mode, Tactile feedback (iOS)

**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 Piano Visualizer free?

Piano Visualizer costs $9.99, with no in-app purchases.

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

JAX Stereo Tool (AU) is rated higher. JAX Stereo Tool (AU) averages 4.4 out of 5 from 27 ratings, while Piano Visualizer averages 1.0 from 1 ratings.

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

Neither JAX Stereo Tool (AU) nor Piano Visualizer shows ads.

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

JAX Stereo Tool (AU) ships an update every 11 days, and Piano Visualizer every 3 months. Most recently, JAX Stereo Tool (AU) was updated on October 12, 2026 and Piano Visualizer on October 15, 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.*