# Elvis Viewer vs KNX

The clearest difference is update cadence: Elvis Viewer at every 2 months against KNX's every 9 months. Elvis Viewer also leads on iOS requirement (9.1 vs 13.0). 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.

Elvis Viewer ships an update every 2 months, KNX every 9 months. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Elvis Viewer | KNX |
| --- | --- | --- |
| 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 2 months** | Every 9 months |
| Monetization | — | Free |
| Size | 139 MB | 9 MB |
| Requires iOS | **9.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IT Gesellschaft fuer Informationstechnik mbH](https://appshunter.io/developer/593524089) | [Feller AG](https://appshunter.io/developer/525095492) |

## What reviewers say

### Elvis Viewer

[App page](https://appshunter.io/ios/app/elvis-viewer/id593523186)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Elvis Viewer free?

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

### Is KNX free?

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

### Do Elvis Viewer or KNX have ads?

Neither Elvis Viewer nor KNX shows ads.

### Which is updated more often, Elvis Viewer or KNX?

Elvis Viewer ships an update every 2 months, and KNX every 9 months. Most recently, Elvis Viewer was updated on October 1, 2026 and KNX on October 10, 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.*