JAX Stereo Tool (AU) vs Guitar Note Recognizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JAX Stereo Tool (AU)
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.
- 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
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JAX Stereo Tool is a visual Audio Unit plugin for manipulating the stereo image of digital audio. The distribution app comes with an embedded plug-in (Audio Unit) that is available system-wide when you install the app. You should be able to use it with most supporting host applications. Audio Units are Apple's recommended method for providing shared audio effects for applications and audio editors. You can load the plugin into any host application that supports at least stereophonic audio effect plug-ins (in Audio Unit format - AUv3) with its own user interface. JAX Stereo Tool has its main use as a mastering effect, that allows you to modify the stereo image of your audio by narrowing or widening it in a controlled manner. That is, the stereo output can be continuously adjusted in the basic function of pure mono to very wide stereo. This happens in real time and you can observe the result with the integrated correlograph, controlling and optimizing the audio thanks to this helpful additional visual information. One of the special functions of JAX Stereo Toolis to recover lost mono-compatibility. This technique is conceptually quite simple and effective but somewhat difficult to understand. Please read the manual for further details. The manual is shipped with the app or available on the product website at https://audio.digitster.com
Guitar Note Recognizer
This tool helps identify guitar fretboard notes using your device's microphone. It offers high-quality sounds and supports various tuning systems, assisting in music learning and instrument tuning.
- Fretboard note identification
- Real-time audio analysis
- Multiple tuning systems
- Pitch detection and tuning fork
- Works in noisy environments
- Automatic note detection
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Guitar Note Recognizer is the simplest and the best tool for the fretboard note identification of the guitar. It has the high-quality sounds of the tuned acoustic guitar. Standard, drop D, drop A, open C, half step down, and many more. The application captures audio signal using the microphone and performs Fast Fourier Transform in order to analyser the signal and determine its frequency, which in turn determines the note being played. Guitar Note Recognizer that Assists Music Learning by Detecting and Processing Musical Characteristics from Microphone in Real-Time. Guitar Note Recognizer to help you quickly and easily tune your musical instrument. As a pitch detector the tuner app is capable of working in noisy environment. This tuning app also works as a pitch pipe and can sound a reference note to tune your instrument. Pitched Tuner displays a traditional tuner needle and dial. Guitar Note Recognizer designed in collaboration with The Great And professional singing teacher. User can choose from different strings naming systems such as - Standard Tuning (E-A-D-G-B-E)", - Drop D (D-A-D-G-B-E) - Open D Tuning (D-A-D-F#-A-D) - Open C Tuning (C-G-C-G-C-E) - Open A Tuning (E-A-C#-E-A-E) - Open B Tuning (B-F#-B-F#-B-D#) - Open E Tuning (E-B-E-G#-B-E) - Open F Tuning (F-A-C-F-C-F) - Open G Tuning (D-G-D-G-B-D) - Half step (D#-G#-C#-F#-A#-D#) - One step down (D-G-C-F-A-D) - F-A-D-G-B-E - D-A-D-G-A-D - D-A-D-D-A-D - C#-G#-C#-F#-A#-D# Easy to use and innovative must have features are all included. - The most acoustic, electric or bass guitar tuning app - Super fast and simple user interface! - Automatic note detection - Analog like needle - Exact frequency display. - Wide Detection Range - Clean bright and simple analog like UI - High precision tuner - Tuning fork, pitched pipe - An Alternative tunings app for other musical instrument - Works in noisy surroundings - Input microphone volume control to control microphone gain. - No advertisements
Screenshots
Verdict
The clearest difference is review sentiment: JAX Stereo Tool (AU) at 80% against Guitar Note Recognizer's 0%. JAX Stereo Tool (AU) also leads on rating (4.4 vs 1.0) and ratings volume (27 vs 2). Guitar Note Recognizer's advantage is price ($0.99 vs $5.99) and update cadence (every 3 days vs every 11 days). On ads, in-app purchases, monetization model 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
JAX Stereo Tool (AU) costs $5.99 and Guitar Note Recognizer $0.99 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 2, so its average is the more settled of the two. Written reviews point the same way: 80% of JAX Stereo Tool (AU)'s written reviews are positive against 0% of Guitar Note Recognizer's.
JAX Stereo Tool (AU) ships an update every 11 days, Guitar Note Recognizer every 3 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | JAX Stereo Tool (AU) | Guitar Note Recognizer |
|---|---|---|
| Price | $5.99 | $0.99 — better |
| Rating | 4.4 (27 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 80.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 27 — better | 2 |
| Update frequency | Every 11 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | Suresh Verma |
Customer experience
JAX Stereo Tool (AU)
Guitar Note Recognizer
In-app purchases
JAX Stereo Tool (AU)
No in-app purchases
Guitar Note Recognizer
No in-app purchases
Questions
Is JAX Stereo Tool (AU) free?
Is Guitar Note Recognizer free?
Which has better reviews, JAX Stereo Tool (AU) or Guitar Note Recognizer?
Do JAX Stereo Tool (AU) or Guitar Note Recognizer have ads?
Which is updated more often, JAX Stereo Tool (AU) or Guitar Note Recognizer?
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