# ElkLink Mobile vs Leak Defense System

The clearest difference is rating: Leak Defense System at 3.0 against ElkLink Mobile's 1.9. Leak Defense System also leads on update cadence (every 3 weeks vs every 22 months). ElkLink Mobile's advantage is review sentiment (22% vs 13%). On price, ratings volume, ads and in-app purchases 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 1.9. Both are backed by a comparable volume of ratings — 14 and 21 respectively. Written reviews complicate that: 22% of ElkLink Mobile's written reviews are positive against 13% of Leak Defense System's, so the app with the better star average is not the one people write more warmly about.

ElkLink Mobile ships an update every 22 months, Leak Defense System every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | ElkLink Mobile | Leak Defense System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (14 ratings)](https://appshunter.io/ios/app/elklink-mobile/id1090049332/reviews) | **[3.0 (21 ratings)](https://appshunter.io/ios/app/leak-defense-system/id1452931362/reviews)** |
| Number of ratings | 14 | **21** |
| Positive reviews | **22.2% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 31 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elk Products Inc.](https://appshunter.io/developer/1090049331) | [Calance](https://appshunter.io/developer/1043184786) |

## What reviewers say

### ElkLink Mobile

[App page](https://appshunter.io/ios/app/elklink-mobile/id1090049332)

Control your M1 Security System remotely. Arm, disarm, receive and respond to alarms, and review system history. Requires a compatible security system and user account.

**Highlights:** Arm and disarm system, Receive and respond to alarms, View recent system history, Basic system control, Remote access

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ElkLink Mobile free?

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

### Is Leak Defense System free?

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

### Which has better reviews, ElkLink Mobile or Leak Defense System?

Leak Defense System is rated higher. ElkLink Mobile averages 1.9 out of 5 from 14 ratings, while Leak Defense System averages 3.0 from 21 ratings.

### Do ElkLink Mobile or Leak Defense System have ads?

Neither ElkLink Mobile nor Leak Defense System shows ads.

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

ElkLink Mobile ships an update every 22 months, and Leak Defense System every 3 weeks. Most recently, ElkLink Mobile was updated on October 24, 2026 and Leak Defense System 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.*