# Leak Defense System vs BlackCloak

The clearest difference is rating: BlackCloak at 4.4 against Leak Defense System's 3.0. BlackCloak also leads on review sentiment (44% vs 13%). On price, ratings volume, update cadence and ads there is nothing between them.

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

BlackCloak holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 21 and 36 respectively. Written reviews point the same way: 13% of Leak Defense System's written reviews are positive against 44% of BlackCloak's.

Leak Defense System ships an update every 3 weeks, BlackCloak fortnightly. The most recent releases landed on August 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Leak Defense System | BlackCloak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews) | **[4.4 (36 ratings)](https://appshunter.io/ios/app/blackcloak/id1523080992/reviews)** |
| Number of ratings | 21 | **36** |
| Positive reviews | 12.5% of reviews | **44.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 30 MB | 85 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Calance](https://appshunter.io/developer/1043184786) | [BlackCloak Inc.](https://appshunter.io/developer/1523080994) |

## 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


### BlackCloak

[App page](https://appshunter.io/ios/app/blackcloak/id1523080992)

Safeguard your digital life and family from online threats with this personal cybersecurity companion. It offers dark web monitoring, identity protection, and device security insights. Get expert support to enhance your online privacy and security.

**Highlights:** Dark web monitoring, Identity protection alerts, Personal device security insights, Online privacy monitoring, Cybersecurity expert support

**Features:** 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 BlackCloak free?

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

### Which has better reviews, Leak Defense System or BlackCloak?

BlackCloak is rated higher. Leak Defense System averages 3.0 out of 5 from 21 ratings, while BlackCloak averages 4.4 from 36 ratings.

### Do Leak Defense System or BlackCloak have ads?

Neither Leak Defense System nor BlackCloak shows ads.

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

Leak Defense System ships an update every 3 weeks, and BlackCloak fortnightly. Most recently, Leak Defense System was updated on August 14, 2026 and BlackCloak on September 10, 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.*