Comparison

Sound Chords vs UltimateScale

Price, ratings, monetisation and update history for both apps, side by side โ€” 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

UltimateScale

Features
Read full description

UtimateScale is a music scale learning assistant. Are you confused and tired of difficult terms and complex scale structures such as Mixolydian and Locrian? With UltimateScale, you can learn by looking at a composition in staff score, directly touching a synth keyboard key on the app, listening by ear, and moving freely in key. In addition, you can learn the scale efficiently through a quiz using the Leitner System, which is famous for learning by memorization. In addition, you can upload and share comments of various scales and your own learning know-how through the Internet Archive. - Learn the scale by looking at the sheet music and listening to the sound. - The built-in touch synth keyboard allows you to learn while directly pressing the keys. - This app does not support only C key. You can transpose from C to B and see how it performs in different situations. - You can adjust the speed and octave during playback, and you can set the playback instrument as you like. - In the quiz menu, learn various scales by solving problems and using flashcards. - For quiz questions, effective learning is possible using the famous Leitner system as a memorization method. - You can share and download new scales that have not yet been discovered through the Internet Archive, scales with comments containing your own learning know-how, etc. This app is also - Support dark mode. - Compatible with both iPad and iPhone devices. - Press scales using a hardware MIDI keyboard connected via Bluetooth or USB. - MIDI keyboard is also supported in quiz mode.

Screenshots

Sound Chords2 screens
UltimateScale4 screens

Verdict

The call

The clearest difference is price: UltimateScale at Free against Sound Chords's $2.99. UltimateScale also leads on update cadence (every 5 months vs every 38 months). Sound Chords's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

UltimateScale is free to download; Sound Chords costs $2.99 up front. UltimateScale sells 1 one-off in-app purchase. Sound Chords asks for nothing beyond the download.

UpkeepUpdate frequency

Sound Chords ships an update every 38 months, UltimateScale every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences ยท 4 level
Sound Chords versus UltimateScale: the parameters behind the verdict, then further details
ParameterSound ChordsUltimateScale
Price$2.99Free โ€” better
Positive reviews66.7% of reviewsโ€”
Update frequencyEvery 38 monthsEvery 5 months โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.614.0 โ€” better
Further details โ€” not scored
Size30 MB60 MB
Age rating4+4+
DeveloperJun UsukiBum Tae Yoon

In-app purchases

None

Sound Chords

No in-app purchases

1 purchases

UltimateScale

One-time1
  • 1: Remove all ads$4.99

Questions

Is Sound Chords free?
Sound Chords costs $2.99, with no in-app purchases.
Is UltimateScale free?
UltimateScale is free to download, with in-app purchases available.
Do Sound Chords or UltimateScale have ads?
UltimateScale shows ads; Sound Chords does not.
Which is updated more often, Sound Chords or UltimateScale?
Sound Chords ships an update every 38 months, and UltimateScale every 5 months. Most recently, Sound Chords was updated on November 2, 2026 and UltimateScale on November 3, 2026.

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