# LC4 Controller vs Extrack

The clearest difference is review sentiment: LC4 Controller at 100% against Extrack's 37%. LC4 Controller also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 2). Extrack's advantage is update cadence (every 6 weeks vs every 26 months) and ratings volume (24 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Extrack sells 2 in-app purchases, starting at $5.99 per month. LC4 Controller asks for nothing beyond the download.

LC4 Controller holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Extrack has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of LC4 Controller's written reviews are positive against 37% of Extrack's.

LC4 Controller ships an update every 26 months, Extrack every 6 weeks. The most recent releases landed on September 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | LC4 Controller | Extrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lc4-controller-us/id1052405144/reviews)** | [3.8 (24 ratings)](https://appshunter.io/ios/app/extrack-stem-separatorchord/id6504546276/reviews) |
| Number of ratings | 1 | **24** |
| Positive reviews | **100.0% of reviews** | 36.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 6 weeks** |
| Monetization | **Free** | Freemium |
| Size | 9 MB | 604 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## What reviewers say

### LC4 Controller

[App page](https://appshunter.io/ios/app/lc4-controller-us/id1052405144)

This app provides wireless control for a music lab, allowing educators to manage student interactions and broadcast music from anywhere in the room. It includes features like student icon customization, attendance tracking, and access to the iPad's music library for class-wide playback.

**Highlights:** Wireless control of Yamaha LC4 Music Lab, Customize and position student icons, In-app attendance tracker, Integrated notepad, Broadcast music from iPad library, Full hardware function access

**In-app purchases:** none


### Extrack

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

Instantly split songs into individual instrument parts and analyze chords in real-time. Adjust volumes, practice "minus one" style, and visualize chord fingerings for guitar or piano. Perfect for musicians of all levels looking to jam along with their favorite tracks.

**Highlights:** Instrumental stem separation, Real-time chord analysis, Adjustable instrument volumes, Practice 'minus one' mode, Visual chord fingering guides, Tempo and key adjustment, Section looping

**In-app purchases (2)**

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


## Frequently asked questions

### Is LC4 Controller free?

LC4 Controller is free to download, with no in-app purchases.

### Is Extrack free?

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

### Which has better reviews, LC4 Controller or Extrack?

LC4 Controller is rated higher. LC4 Controller averages 5.0 out of 5 from 1 ratings, while Extrack averages 3.8 from 24 ratings.

### Do LC4 Controller or Extrack have ads?

Neither LC4 Controller nor Extrack shows ads.

### Which is updated more often, LC4 Controller or Extrack?

LC4 Controller ships an update every 26 months, and Extrack every 6 weeks. Most recently, LC4 Controller was updated on September 23, 2026 and Extrack on October 14, 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.*