# Sound Chords vs UltimateScale

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.

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.

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.

## The numbers

| Metric | Sound Chords | UltimateScale |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 30 MB | 60 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jun Usuki](https://appshunter.io/developer/673638479) | [Bum Tae Yoon](https://appshunter.io/developer/1578285460) |

## What reviewers say

### Sound Chords

[App page](https://appshunter.io/ios/app/sound-chords/id1210724946)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### UltimateScale

[App page](https://appshunter.io/ios/app/ultimatescale/id1631310626)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1: Remove all ads | $4.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*