# E3 Controller vs Scorekeep

The clearest difference is update cadence: Scorekeep at daily against E3 Controller's every 11 months. E3 Controller's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E3 Controller ships an update every 11 months, Scorekeep daily. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | E3 Controller | Scorekeep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (9 ratings)](https://appshunter.io/ios/app/e3-controller-us/id509030474/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Daily** |
| Monetization | Free | — |
| Size | 12 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Thomas Pryor](https://appshunter.io/developer/1882594087) |

## What reviewers say

### E3 Controller

[App page](https://appshunter.io/ios/app/e3-controller-us/id509030474)

Control your Disklavier E3 or DKC-850 remotely from your iOS device. View song titles and access all functions previously available with the infrared remote. Requires a wireless router connection to your piano.

**Highlights:** Remote control for Disklavier E3/DKC-850, Access all infrared remote functions, View piano control unit screen, Check song titles remotely, Wireless router connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### Scorekeep

[App page](https://appshunter.io/ios/app/scorekeep-score-tracker/id6760328540)

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

**In-app purchases:** none


## Frequently asked questions

### Is E3 Controller free?

E3 Controller is free to download, with no in-app purchases.

### Is Scorekeep free?

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

### Do E3 Controller or Scorekeep have ads?

Neither E3 Controller nor Scorekeep shows ads.

### Which is updated more often, E3 Controller or Scorekeep?

E3 Controller ships an update every 11 months, and Scorekeep daily. Most recently, E3 Controller was updated on November 1, 2026 and Scorekeep on November 9, 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.*