# Leak Defense System vs nJoy UWG5

The clearest difference is rating: Leak Defense System at 3.0 against nJoy UWG5's 1.0. Leak Defense System also leads on update cadence (every 3 weeks vs every 5 months) and ratings volume (21 vs 2). On price, ads, in-app purchases and monetization model 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 1.0. That said, the two scores are not equally well evidenced: Leak Defense System has 21 ratings behind it against 2, so its average is the more settled of the two.

Leak Defense System ships an update every 3 weeks, nJoy UWG5 every 5 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Leak Defense System | nJoy UWG5 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/njoy-uwg5/id6501962065/reviews) |
| Number of ratings | **21** | 2 |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 31 MB | 100 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Calance](https://appshunter.io/developer/1043184786) | [OJ ELECTRONICS AS](https://appshunter.io/developer/1326069502) |

## What reviewers say

### 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


### nJoy UWG5

[App page](https://appshunter.io/ios/app/njoy-uwg5/id6501962065)

Control your WiFi-enabled thermostat remotely to manage indoor temperatures, heating schedules, and energy usage. Set custom zones, enable vacation mode, and integrate with smart home systems for convenient operation.

**Highlights:** Remote temperature control, Customizable heating schedules, Thermostat zoning, Vacation mode, Energy usage monitoring, Smart home integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Leak Defense System free?

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

### Is nJoy UWG5 free?

nJoy UWG5 is free to download, with no in-app purchases.

### Which has better reviews, Leak Defense System or nJoy UWG5?

Leak Defense System is rated higher. Leak Defense System averages 3.0 out of 5 from 21 ratings, while nJoy UWG5 averages 1.0 from 2 ratings.

### Do Leak Defense System or nJoy UWG5 have ads?

Neither Leak Defense System nor nJoy UWG5 shows ads.

### Which is updated more often, Leak Defense System or nJoy UWG5?

Leak Defense System ships an update every 3 weeks, and nJoy UWG5 every 5 months. Most recently, Leak Defense System was updated on November 2, 2026 and nJoy UWG5 on November 4, 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.*