Leak Defense System vs SPJ Smart Lighting
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Leak Defense System
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.
- Remote water shut-off
- Plumbing leak detection
- Emergency water shut-off
- Smart-home integration
- Control for homes, high-rises, and buildings
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The Leak Defense System is the industry leader in water leak shut off systems and smart-home water shut off valves. It's so advanced that you can turn off water to your home, a zone of a high-rise or the entire building with a touch of a button. Detects plumbing leaks and serves as an emergency water shut off too!
SPJ Smart Lighting
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.
- Smartphone controlled lighting
- RGBW color control
- Warm to cool white adjustment
- Customizable lighting designs
- Simple and flexible system
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Bring your outdoor lighting designs to life with our new state of the art FLEX-LINK PRO system. SPJ LIGHTING INC, brings you the most advanced yet SIMPLE and FLEXIBLE smart phone controlled landscape lighting system available on the market today. Control color RGBW plus WARM WHITE to COOL WHITE.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Leak Defense System | SPJ Smart Lighting |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (21 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 12.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 21 — better | 3 |
| Update frequency | Every 3 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 228 MB |
| Age rating | 4+ | 12+ |
| Developer | Calance | SPJ Lighting, INC. |
Customer experience
Leak Defense System
SPJ Smart Lighting
In-app purchases
Leak Defense System
No in-app purchases
SPJ Smart Lighting
No in-app purchases
Questions
Is Leak Defense System free?
Is SPJ Smart Lighting free?
Which has better reviews, Leak Defense System or SPJ Smart Lighting?
Do Leak Defense System or SPJ Smart Lighting have ads?
Which is updated more often, Leak Defense System or SPJ Smart Lighting?
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