Comparison

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.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • Fretboard note identification
  • Real-time audio analysis
  • Multiple tuning systems
  • Pitch detection and tuning fork
  • Works in noisy environments
  • Automatic note detection
Features
Read full description

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

JAX Stereo Tool (AU)4 screens
Guitar Note Recognizer2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
JAX Stereo Tool (AU) versus Guitar Note Recognizer: the parameters behind the verdict, then further details
ParameterJAX Stereo Tool (AU)Guitar Note Recognizer
Price$5.99$0.99 — better
Rating4.4 (27 ratings) — better1.0 (2 ratings)
Positive reviews80.0% of reviews — better0.0% of reviews
Number of ratings27 — better2
Update frequencyEvery 11 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size10 MB25 MB
Age rating4+4+
DeveloperJens GuellSuresh Verma

Customer experience

JAX Stereo Tool (AU)

All ratings27 ratings
Positive85.2%
Neutral0.0%
Negative14.8%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Guitar Note Recognizer

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

JAX Stereo Tool (AU)

No in-app purchases

None

Guitar Note Recognizer

No in-app purchases

Questions

Is JAX Stereo Tool (AU) free?
JAX Stereo Tool (AU) costs $5.99, with no in-app purchases.
Is Guitar Note Recognizer free?
Guitar Note Recognizer costs $0.99, with no in-app purchases.
Which has better reviews, JAX Stereo Tool (AU) or Guitar Note Recognizer?
JAX Stereo Tool (AU) is rated higher. JAX Stereo Tool (AU) averages 4.4 out of 5 from 27 ratings, while Guitar Note Recognizer averages 1.0 from 2 ratings.
Do JAX Stereo Tool (AU) or Guitar Note Recognizer have ads?
Neither JAX Stereo Tool (AU) nor Guitar Note Recognizer shows ads.
Which is updated more often, JAX Stereo Tool (AU) or Guitar Note Recognizer?
JAX Stereo Tool (AU) ships an update every 11 days, and Guitar Note Recognizer every 3 days. Most recently, JAX Stereo Tool (AU) was updated on October 29, 2026 and Guitar Note Recognizer on October 30, 2026.

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