# Leak Defense System vs Smart Outlet Controller

The clearest difference is price: Leak Defense System at Free against Smart Outlet Controller's $4.99. Leak Defense System also leads on iOS requirement (15.6 vs 18.2). On update cadence, ads, in-app purchases and device support there is nothing between them.

Leak Defense System is free to download; Smart Outlet Controller costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Leak Defense System ships an update every 3 weeks, Smart Outlet Controller monthly. Both last shipped on October 7, 2026.

## The numbers

| Metric | Leak Defense System | Smart Outlet Controller |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 31 MB | 1 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Calance](https://appshunter.io/developer/1043184786) | [Edward Juden](https://appshunter.io/developer/1020781189) |

## 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


### Smart Outlet Controller

[App page](https://appshunter.io/ios/app/smart-outlet-controller/id6740550498)

**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 Smart Outlet Controller free?

Smart Outlet Controller costs $4.99, with no in-app purchases.

### Do Leak Defense System or Smart Outlet Controller have ads?

Neither Leak Defense System nor Smart Outlet Controller shows ads.

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

Leak Defense System ships an update every 3 weeks, and Smart Outlet Controller monthly. Most recently, Leak Defense System was updated on October 7, 2026 and Smart Outlet Controller 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.*