# ENSPIRE Controller vs Unitary Converter

The clearest difference is in-app purchases: ENSPIRE Controller at none against Unitary Converter's 1. ENSPIRE Controller also leads on ads (none vs shown). Unitary Converter's advantage is update cadence (every 2 months vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unitary Converter sells 1 one-off in-app purchase. ENSPIRE Controller asks for nothing beyond the download.

ENSPIRE Controller ships an update every 10 months, Unitary Converter every 2 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ENSPIRE Controller | Unitary Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (97 ratings)](https://appshunter.io/ios/app/enspire-controller-us/id1109063596/reviews)** | — |
| Number of ratings | **97** | — |
| Positive reviews | 18.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 17 MB | 18 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Hakan Buran](https://appshunter.io/developer/1843556431) |

## What reviewers say

### ENSPIRE Controller

[App page](https://appshunter.io/ios/app/enspire-controller-us/id1109063596)

Control your Yamaha Disklavier ENSPIRE piano wirelessly. Access built-in songs, download thousands more, and enjoy exclusive streaming piano music channels. Seamless integration with your mobile devices makes managing your instrument effortless.

**Highlights:** Wireless network connectivity, Access to built-in and downloadable songs, Thousands of performances available, Exclusive streaming piano music channels, Intuitive controller design

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

**In-app purchases:** none

**What reviewers like**

- 👍 Works when connected
- 👍 Intuitive interface (older reviews)
- 👍 Good when it works
- 👍 Appreciated by older Disklavier owners

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🐛 App rarely works
- 🐛 Unreliable and unstable
- 🐛 Difficult to navigate
- 🐛 Expensive for poor functionality

**Reported bugs**

- Connection issues
- App crashes
- White screen of death
- Requires rebooting piano
- Login/server connection issues

**Requested features**

- Update app for consistency
- More access to maintenance functions/tests/settings
- Better support for Remote Lesson functions
- Dark theme/night mode options
- Wallpaper options


### Unitary Converter

[App page](https://appshunter.io/ios/app/unitary-converter/id6758658949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is ENSPIRE Controller free?

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

### Is Unitary Converter free?

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

### Do ENSPIRE Controller or Unitary Converter have ads?

Unitary Converter shows ads; ENSPIRE Controller does not.

### Which is updated more often, ENSPIRE Controller or Unitary Converter?

ENSPIRE Controller ships an update every 10 months, and Unitary Converter every 2 months. Most recently, ENSPIRE Controller was updated on October 15, 2026 and Unitary Converter on October 16, 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.*