# Inxpect Security vs DUO System

The clearest difference is review sentiment: DUO System at 100% against Inxpect Security's 60%. Inxpect Security's advantage is update cadence (every 4 months vs every 9 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Inxpect Security ships an update every 4 months, DUO System every 9 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Inxpect Security | DUO System |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 20 MB | 15 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [INXPECT SPA](https://appshunter.io/developer/1334620176) | [ACI srl](https://appshunter.io/developer/1124362356) |

## What reviewers say

### Inxpect Security

[App page](https://appshunter.io/ios/app/inxpect-security/id1334620177)

This utility app configures specialized security sensors. A physical Inxpect sensor device is necessary for its operation. It is designed for setting up devices like the MSK-101.

**Highlights:** Configure Inxpect sensors, Support for MSK-101, Requires physical device, Security sensor setup

**Features:** macOS Compatibility

**In-app purchases:** none


### DUO System

[App page](https://appshunter.io/ios/app/duo-system/id1492297534)

Easily program Farfisa Duo System devices with this intuitive application. Streamline your device setup and configuration process.

**Highlights:** Program Farfisa Duo System devices, Intuitive interface, Streamlined configuration, Device setup assistance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Inxpect Security free?

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

### Is DUO System free?

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

### Do Inxpect Security or DUO System have ads?

Neither Inxpect Security nor DUO System shows ads.

### Which is updated more often, Inxpect Security or DUO System?

Inxpect Security ships an update every 4 months, and DUO System every 9 months. Most recently, Inxpect Security was updated on October 2, 2026 and DUO System on October 5, 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.*