# Lexington Alarm Systems vs ShieldSOS

The clearest difference is update cadence: ShieldSOS at every 3 weeks against Lexington Alarm Systems's every 10 months. Lexington Alarm Systems's advantage is iOS requirement (10.0 vs 15.6). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 5.0 for Lexington Alarm Systems against 5.0 for ShieldSOS. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Lexington Alarm Systems ships an update every 10 months, ShieldSOS every 3 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lexington Alarm Systems | ShieldSOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/lexington-alarm-systems/id1326326422/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/shieldsos-security-system/id6745813827/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 81 MB | 36 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wayne Alarm Systems](https://appshunter.io/developer/1150523838) | [ShieldSOS LLC](https://appshunter.io/developer/1813497605) |

## What reviewers say

### Lexington Alarm Systems

[App page](https://appshunter.io/ios/app/lexington-alarm-systems/id1326326422)

This mobile application provides remote control for your enabled alarm system. Arm or disarm your system, connect to a monitoring center, request service, and view video feeds. It aims to enhance your safety, security, and convenience.

**Highlights:** Remote arming and disarming, Immediate connection to monitoring center, Service requests, Bill payment, Video feed viewing (Total Connect & OpenEye)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShieldSOS

[App page](https://appshunter.io/ios/app/shieldsos-security-system/id6745813827)

This security system app allows users to monitor and activate their devices for personal safety. It offers customizable settings for sirens, strobe lights, and pepper spray, with options for multi-location management and integration with emergency services.

**Highlights:** Instant security activation, Customizable device settings, Multi-location management, Optional RapidSOS e911 integration, Pepper spray refill program, Smart home compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lexington Alarm Systems free?

Lexington Alarm Systems is free to download, with no in-app purchases.

### Is ShieldSOS free?

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

### Which has better reviews, Lexington Alarm Systems or ShieldSOS?

Lexington Alarm Systems and ShieldSOS are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do Lexington Alarm Systems or ShieldSOS have ads?

Neither Lexington Alarm Systems nor ShieldSOS shows ads.

### Which is updated more often, Lexington Alarm Systems or ShieldSOS?

Lexington Alarm Systems ships an update every 10 months, and ShieldSOS every 3 weeks. Most recently, Lexington Alarm Systems was updated on October 14, 2026 and ShieldSOS 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.*