# Sound Chords vs MoDoSolfa

The clearest difference is price: MoDoSolfa at Free against Sound Chords's $2.99. MoDoSolfa also leads on update cadence (every 3 weeks vs every 38 months). Sound Chords's advantage is iOS requirement (15.6 vs 18.2). On ads, in-app purchases and device support there is nothing between them.

MoDoSolfa is free to download; Sound Chords costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sound Chords ships an update every 38 months, MoDoSolfa every 3 weeks. The most recent releases landed on October 21, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sound Chords | MoDoSolfa |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 30 MB | 30 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jun Usuki](https://appshunter.io/developer/673638479) | [Hidenori Ishiii](https://appshunter.io/developer/1440959870) |

## 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


### MoDoSolfa

[App page](https://appshunter.io/ios/app/modosolfa/id6749871031)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sound Chords free?

Sound Chords costs $2.99, with no in-app purchases.

### Is MoDoSolfa free?

MoDoSolfa is free to download, with no in-app purchases.

### Do Sound Chords or MoDoSolfa have ads?

Neither Sound Chords nor MoDoSolfa shows ads.

### Which is updated more often, Sound Chords or MoDoSolfa?

Sound Chords ships an update every 38 months, and MoDoSolfa every 3 weeks. Most recently, Sound Chords was updated on October 21, 2026 and MoDoSolfa on October 30, 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.*