# KNX APP vs Rembelle

The clearest difference is in-app purchases: KNX APP at none against Rembelle's 2. KNX APP also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). Rembelle's advantage is update cadence (every 2 months vs every 5 months). On price and ads there is nothing between them.

Both are free to download. Rembelle sells 2 in-app purchases, starting at $3.99 per month. KNX APP asks for nothing beyond the download.

KNX APP ships an update every 5 months, Rembelle every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KNX APP | Rembelle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/knx-app-control/id1099217049/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 26.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 105 MB | 45 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Busch-Jaeger Elektro GmbH](https://appshunter.io/developer/542311466) | [Burak Akbay](https://appshunter.io/developer/1895485036) |

## What reviewers say

### KNX APP

[App page](https://appshunter.io/ios/app/knx-app-control/id1099217049)

Control your home or office remotely with custom scenes and time programs. Manage lighting, temperature, security, and more. Offers live previews, camera control, and push notifications for alarms.

**Highlights:** Custom scene creation, Time program management, Lighting and blind control, Temperature management, IP camera pan, tilt, zoom, Alarm notifications, PIN page protection

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Rembelle

[App page](https://appshunter.io/ios/app/rembelle/id6798366056)

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rembelle Premium Monthly | $3.99 | per month |
| Rembelle Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is KNX APP free?

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

### Is Rembelle free?

Rembelle is free to download, with in-app purchases available.

### Do KNX APP or Rembelle have ads?

Neither KNX APP nor Rembelle shows ads.

### Which is updated more often, KNX APP or Rembelle?

KNX APP ships an update every 5 months, and Rembelle every 2 months. Most recently, KNX APP was updated on October 24, 2026 and Rembelle on October 25, 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.*