# Sonic Security System vs CST ESS

The clearest difference is update cadence: Sonic Security System at every 2 months against CST ESS's every 29 months. Sonic Security System also leads on device support and iOS requirement (12.0 vs 15.6). On price 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.

Sonic Security System ships an update every 2 months, CST ESS every 29 months. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Sonic Security System | CST ESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sonic-security-system/id1281324210/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 months** | Every 29 months |
| Monetization | Free | — |
| Size | 21 MB | 37 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [SHINCLUSTER ELECTRONICS CO., LTD](https://appshunter.io/developer/1571449464) | [无锡乐伏网络科技有限公司](https://appshunter.io/developer/1197246083) |

## What reviewers say

### Sonic Security System

[App page](https://appshunter.io/ios/app/sonic-security-system/id1281324210)

This user-friendly smart wireless security system offers easy setup via a smartphone app. It allows for quick addition or removal of sensors and provides individual sensor configuration options. The system also supports wired inputs/outputs and wireless sirens for comprehensive security.

**Highlights:** Easy operation interface, Quick WiFi system setup, Add/remove sensors via app, Individual sensor setup, Wired input/output support, Wireless siren compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### CST ESS

[App page](https://appshunter.io/ios/app/cst-ess/id6447654088)

**In-app purchases:** none


## Frequently asked questions

### Is Sonic Security System free?

Sonic Security System is free to download, with no in-app purchases.

### Is CST ESS free?

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

### Which is updated more often, Sonic Security System or CST ESS?

Sonic Security System ships an update every 2 months, and CST ESS every 29 months. Most recently, Sonic Security System was updated on September 13, 2026 and CST ESS on September 14, 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.*