# Leak Defense System vs SPJ Smart Lighting

The clearest difference is review sentiment: SPJ Smart Lighting at 100% against Leak Defense System's 13%. SPJ Smart Lighting also leads on rating (3.7 vs 3.0). Leak Defense System's advantage is update cadence (every 3 weeks vs every 8 months) and ratings volume (21 vs 3). 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.

SPJ Smart Lighting holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Leak Defense System has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 13% of Leak Defense System's written reviews are positive against 100% of SPJ Smart Lighting's.

Leak Defense System ships an update every 3 weeks, SPJ Smart Lighting every 8 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Leak Defense System | SPJ Smart Lighting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/spj-smart-lighting/id1628974643/reviews)** |
| Number of ratings | **21** | 3 |
| Positive reviews | 12.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free | Free |
| Size | 31 MB | 228 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Calance](https://appshunter.io/developer/1043184786) | [SPJ Lighting, INC.](https://appshunter.io/developer/1628974645) |

## 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


### SPJ Smart Lighting

[App page](https://appshunter.io/ios/app/spj-smart-lighting/id1628974643)

Control your outdoor landscape lighting with this smartphone-based system. Adjust colors from RGBW to warm or cool white for custom ambiance. The system offers advanced yet simple control for your lighting designs.

**Highlights:** Smartphone controlled lighting, RGBW color control, Warm to cool white adjustment, Customizable lighting designs, Simple and flexible system

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

**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 SPJ Smart Lighting free?

SPJ Smart Lighting is free to download, with no in-app purchases.

### Which has better reviews, Leak Defense System or SPJ Smart Lighting?

SPJ Smart Lighting is rated higher. Leak Defense System averages 3.0 out of 5 from 21 ratings, while SPJ Smart Lighting averages 3.7 from 3 ratings.

### Do Leak Defense System or SPJ Smart Lighting have ads?

Neither Leak Defense System nor SPJ Smart Lighting shows ads.

### Which is updated more often, Leak Defense System or SPJ Smart Lighting?

Leak Defense System ships an update every 3 weeks, and SPJ Smart Lighting every 8 months. Most recently, Leak Defense System was updated on October 24, 2026 and SPJ Smart Lighting on October 24, 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.*