# D1 System vs Sonic Security System

The clearest difference is iOS requirement: D1 System at 8.0 against Sonic Security System's 12.0. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 8, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | D1 System | Sonic Security System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sonic-security-system/id1281324210/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 6 MB | 21 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [China Security & Fire IOT Sensing Co., Ltd.](https://appshunter.io/developer/914724038) | [SHINCLUSTER ELECTRONICS CO., LTD](https://appshunter.io/developer/1571449464) |

## What reviewers say

### D1 System

[App page](https://appshunter.io/ios/app/d1-system/id914724035)

This app allows users to remotely manage an SMS alarm system. It enables sending text messages for home protection, configuring alarm host parameters, and setting zone and RFID card names. Users can also manage SMS codes.

**Highlights:** Send SMS for home protection, Configure alarm host parameters, Set zone names, Set RFID card names, Manage SMS codes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is D1 System free?

D1 System is free to download, with no in-app purchases.

### Is Sonic Security System free?

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

### Do D1 System or Sonic Security System have ads?

Neither D1 System nor Sonic Security System shows ads.

### Which is updated more often, D1 System or Sonic Security System?

D1 System ships an update every 2 months, and Sonic Security System every 2 months. Most recently, D1 System was updated on June 8, 2026 and Sonic Security System on September 13, 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.*