# SmartIsON EVO vs DUO System

The clearest difference is update cadence: SmartIsON EVO at every 4 weeks against DUO System's every 9 months. SmartIsON EVO also leads on iOS requirement (9.0 vs 12.0). On price, review sentiment, 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.

SmartIsON EVO ships an update every 4 weeks, DUO System every 9 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SmartIsON EVO | DUO System |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 9 months |
| Monetization | Free | Free |
| Size | 59 MB | 15 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kon.El.Co.](https://appshunter.io/developer/931693756) | [Aci Farfisa](https://appshunter.io/developer/1124362356) |

## What reviewers say

### SmartIsON EVO

[App page](https://appshunter.io/ios/app/smartison-evo/id1466756904)

Connect to your home and remotely control everyday devices. This app allows you to manage your smart home accessories, including alarm sensors, temperature sensors, and modules for lights and blinds, all through your WiFi network.

**Highlights:** Remote device control, WiFi network connection, Smart accessory integration, Alarm sensor management, Temperature sensor monitoring, Light and blind module control

**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 SmartIsON EVO free?

SmartIsON EVO 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 SmartIsON EVO or DUO System have ads?

Neither SmartIsON EVO nor DUO System shows ads.

### Which is updated more often, SmartIsON EVO or DUO System?

SmartIsON EVO ships an update every 4 weeks, and DUO System every 9 months. Most recently, SmartIsON EVO was updated on October 16, 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.*