Comparison

Sound Chords vs JAX ESSENTIALS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sound Chords

Instantly hear the sound of any chord symbol you encounter in sheet music. This app helps you understand chord progressions, create accompaniments, and learn chords by listening. It also allows you to check musical scales in a selected keynote.

Highlights
  • Listen to chord sounds from symbols
  • Check chord progressions
  • Create chord accompaniments
  • Learn chords by listening
  • Check musical scales
  • Select keynote for scales
Features
Read full description

Sound Chords is an application software to listen to the sound of chord. When you read music score, you may find chord names or symbols such as C, F and G. If the sound of chord resounds in your head only by reading the symbol, you will be more exciting. But, even if it is difficult, you can check the sound when you only tap chord symbols using this application. This application makes your music life more exciting. The recommendations are as follows: 1. You want to listen to the sound chord while you sing a melody of a song. 2. You want to check the chord progression while listening to sounds. 3. You want to create an accompaniment to a melody by your favorite chords. 4. You want to learn and remember chords by listening to the sound. 5. You want to play music chords along with piano or guitar performance. In addition, the sound of musical scale can be checked in a selected keynote. * major scale * harmonic minor scale * natural minor scale * melodic minor scale This function is useful to you when you sing a song or play an musical instrument.

About

JAX ESSENTIALS

This audio effect plugin offers a multi-stage phaser modulation with allpass filters for dynamic soundscapes. It's compatible across Apple devices and integrates with popular music production software.

Highlights
  • Multi-stage phaser modulation
  • Allpass filter design
  • LFO for depth and speed modulation
  • Cross-device preset sharing
  • Includes ~200 factory presets
  • Resizable and adaptive interface
Features
Read full description

( THIS IS AN AUDIOUNIT. AudioUnits are app extensions, requiring any audio host application to perform. ) Use the same AudioUnits across all modern Apple devices, including the iPhone and the Mac (Apple Silicon). Native MacOS apps like GarageBand, MainStage 3 and Logic Pro X are fully supported. Any 3rd-party AUv3 supporting host should be able to host the plugin too. The JAX ESSENTIAL SERIES Phaser is a multi stage phaser modulation effect that uses multiple allpass filters, to produce all kinds of the famous phaser effect. A low frequency oscillator modulates depth and speed of the filter modulation on both stereo channels for various living and moving sound nuances. Make static sounding voices more interesting or create sweaping special effects. You may share the presets for this effect across all your supported devices. Around 200 factory presets are included, you can make and export/import your own. The complete manual is included and can be previewed on our support website: https://audio.digitster.com For advanced usage (i.e. mastering and exciting), we recommend to select the phaser from our SELECTIVE RANGE SERIES, which allows to limit the frequency range for processing. This build is truly 'universal', meaning, the audio unit is available for: - iOS (all actual iPhones) - iPadOS (all actual iPads) - macOS (Apple Silicon) - visionOS (Apple Vision Pro) Requirements: MacOS 11.0++ iOS 14.0++ Behaviour on all devices is identical. The parametric interface is resizeble and adopts to any screen size and orientation. This especially applies to Logic Pro X and all hosts with adjustable window sizes on all platforms. Display contrast can be adjusted freely and is now saved with each preset.

Screenshots

Sound Chords2 screens
JAX ESSENTIALS4 screens

Verdict

The call

The clearest difference is update cadence: JAX ESSENTIALS at every 2 weeks against Sound Chords's every 38 months. Sound Chords's advantage is price ($2.99 vs $4.99). 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

Sound Chords costs $2.99 and JAX ESSENTIALS $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sound Chords ships an update every 38 months, JAX ESSENTIALS every 2 weeks. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 8 level
Sound Chords versus JAX ESSENTIALS: the parameters behind the verdict, then further details
ParameterSound ChordsJAX ESSENTIALS
Price$2.99 — better$4.99
Rating—5.0 (1 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings—1 — better
Update frequencyEvery 38 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.614.0 — better
Further details — not scored
Size30 MB33 MB
Age rating4+4+
DeveloperJun UsukiJens Guell

Customer experience

Sound Chords

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

JAX ESSENTIALS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sound Chords

No in-app purchases

None

JAX ESSENTIALS

No in-app purchases

Questions

Is Sound Chords free?
Sound Chords costs $2.99, with no in-app purchases.
Is JAX ESSENTIALS free?
JAX ESSENTIALS costs $4.99, with no in-app purchases.
Do Sound Chords or JAX ESSENTIALS have ads?
Neither Sound Chords nor JAX ESSENTIALS shows ads.
Which is updated more often, Sound Chords or JAX ESSENTIALS?
Sound Chords ships an update every 38 months, and JAX ESSENTIALS every 2 weeks. Most recently, Sound Chords was updated on October 21, 2026 and JAX ESSENTIALS on October 19, 2026.

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