# Disklavier Controller vs Leak Defense System

The clearest difference is update cadence: Leak Defense System at every 3 weeks against Disklavier Controller's every 10 months. Leak Defense System also leads on rating (3.0 vs 2.7). Disklavier Controller's advantage is review sentiment (35% vs 13%) and iOS requirement (12.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Leak Defense System holds the better App Store score, 3.0 against 2.7. Both are backed by a comparable volume of ratings — 26 and 21 respectively. Written reviews complicate that: 35% of Disklavier Controller's written reviews are positive against 13% of Leak Defense System's, so the app with the better star average is not the one people write more warmly about.

Disklavier Controller ships an update every 10 months, Leak Defense System every 3 weeks. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Disklavier Controller | Leak Defense System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (26 ratings)](https://appshunter.io/ios/app/disklavier-controller-us/id467490291/reviews) | **[3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews)** |
| Number of ratings | **26** | 21 |
| Positive reviews | **34.6% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 4 MB | 31 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Calance](https://appshunter.io/developer/1043184786) |

## What reviewers say

### Disklavier Controller

[App page](https://appshunter.io/ios/app/disklavier-controller-us/id467490291)

Control key functions of your Disklavier piano remotely via WiFi. Adjust volume, manage playback, select songs, and perform simple recordings from your device. Compatible with specific Disklavier models.

**Highlights:** Main volume control, Start/stop song playback, Source, album, song selection, Simple recording functions, DisklavierRadio playback, Balance, Transpose, Tempo control

**Features:** macOS Compatibility

**In-app purchases:** none


### Leak Defense System

[App page](https://appshunter.io/ios/app/leak-defense-system/id1452931362)

This system detects plumbing leaks and provides remote water shut-off capabilities for homes, high-rises, or entire buildings. It acts as an emergency shut-off solution, offering advanced control over your water supply.

**Highlights:** Remote water shut-off, Plumbing leak detection, Emergency water shut-off, Smart-home integration, Control for homes, high-rises, and buildings

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

**In-app purchases:** none


## Frequently asked questions

### Is Disklavier Controller free?

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

### Is Leak Defense System free?

Leak Defense System is free to download, with no in-app purchases.

### Which has better reviews, Disklavier Controller or Leak Defense System?

Leak Defense System is rated higher. Disklavier Controller averages 2.7 out of 5 from 26 ratings, while Leak Defense System averages 3.0 from 21 ratings.

### Do Disklavier Controller or Leak Defense System have ads?

Neither Disklavier Controller nor Leak Defense System shows ads.

### Which is updated more often, Disklavier Controller or Leak Defense System?

Disklavier Controller ships an update every 10 months, and Leak Defense System every 3 weeks. Most recently, Disklavier Controller was updated on October 8, 2026 and Leak Defense System on October 7, 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.*