# レディモ vs Extrack

The clearest difference is in-app purchases: レディモ at none against Extrack's 2. レディモ also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Extrack sells 2 in-app purchases, starting at $5.99 per month. レディモ asks for nothing beyond the download.

レディモ ships an update monthly, Extrack every 6 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | レディモ | Extrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (31 ratings)](https://appshunter.io/ios/app/extrack-stem-separatorchord/id6504546276/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 35.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | — | Freemium |
| Size | 4 MB | 603 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Smart Engineering](https://appshunter.io/developer/544232740) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## What reviewers say

### レディモ

[App page](https://appshunter.io/ios/app/id1514041719)

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

**In-app purchases:** none


### Extrack

[App page](https://appshunter.io/ios/app/extrack-stem-separatorchord/id6504546276)

This app allows you to split songs into individual instrument parts and see chords in real-time. Practice along with your favorite music by adjusting volumes, changing tempo, or muting specific instruments. It's designed for musicians of all levels to enhance their practice sessions.

**Highlights:** Instrument stem separation, Real-time chord analysis, Adjustable instrument volumes, Practice 'minus one' style, Tempo and key changes, Section looping, Visual chord guides

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $5.99 | per month |
| Yearly Plan | $39.99 | per year |


## Frequently asked questions

### Is レディモ free?

レディモ is free to download, with no in-app purchases.

### Is Extrack free?

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

### Do レディモ or Extrack have ads?

Neither レディモ nor Extrack shows ads.

### Which is updated more often, レディモ or Extrack?

レディモ ships an update monthly, and Extrack every 6 weeks. Most recently, レディモ was updated on October 29, 2026 and Extrack 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.*