# KNX vs Smartbell

The clearest difference is update cadence: Smartbell at every 6 weeks against KNX's every 9 months. KNX's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

KNX ships an update every 9 months, Smartbell every 6 weeks. The most recent releases landed on June 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | KNX | Smartbell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knx/id780337917/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 9 MB | 29 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Feller AG](https://appshunter.io/developer/525095492) | [Codext GmbH](https://appshunter.io/developer/1488755999) |

## What reviewers say

### KNX

[App page](https://appshunter.io/ios/app/knx/id780337917)

Transform your smartphone or tablet into a comprehensive remote control for your home or office building functions. Easily manage lights, shutters, climate, and more with an intuitive interface. Personalize settings like function names and symbols for a tailored experience.

**Highlights:** Intuitive operating concept, Scene call via widget, Rapid navigation, Personalized settings, Freely definable scenes, Intelligent self-configuration, Remote control in WiFi networks

**Features:** macOS Compatibility

**In-app purchases:** none


### Smartbell

[App page](https://appshunter.io/ios/app/smartbell/id1521007837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KNX free?

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

### Is Smartbell free?

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

### Do KNX or Smartbell have ads?

Neither KNX nor Smartbell shows ads.

### Which is updated more often, KNX or Smartbell?

KNX ships an update every 9 months, and Smartbell every 6 weeks. Most recently, KNX was updated on June 24, 2026 and Smartbell on September 17, 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.*