# MoDoSolfa vs Relative Pitch

The clearest difference is in-app purchases: MoDoSolfa at none against Relative Pitch's 1. Relative Pitch's advantage is update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Relative Pitch sells 1 one-off in-app purchase. MoDoSolfa asks for nothing beyond the download.

MoDoSolfa ships an update every 3 weeks, Relative Pitch every 4 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MoDoSolfa | Relative Pitch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 30 MB | 3 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hidenori Ishiii](https://appshunter.io/developer/1440959870) | [RYO SAKAGUCHI](https://appshunter.io/developer/1884547640) |

## What reviewers say

### MoDoSolfa

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Relative Pitch

[App page](https://appshunter.io/ios/app/relative-pitch-ear-training/id6760454758)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $4.99 | one-time |


## Frequently asked questions

### Is MoDoSolfa free?

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

### Is Relative Pitch free?

Relative Pitch is free to download, with in-app purchases available.

### Do MoDoSolfa or Relative Pitch have ads?

Neither MoDoSolfa nor Relative Pitch shows ads.

### Which is updated more often, MoDoSolfa or Relative Pitch?

MoDoSolfa ships an update every 3 weeks, and Relative Pitch every 4 days. Most recently, MoDoSolfa was updated on October 16, 2026 and Relative Pitch on October 24, 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.*