# Rademacher vs Busch

The clearest difference is rating: Rademacher at 4.8 against Busch's 3.2. Busch's advantage is ratings volume (25 vs 8) and iOS requirement (12 vs 15.0). On price, update cadence, 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.

Rademacher holds the better App Store score, 4.8 against 3.2. Both are backed by a comparable volume of ratings — 8 and 25 respectively.

Rademacher ships an update every 7 months, Busch every 5 months. The most recent releases landed on September 17, 2026 and August 10, 2026 respectively.

## The numbers

| Metric | Rademacher | Busch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/rademacher/id458037582/reviews)** | [3.2 (25 ratings)](https://appshunter.io/ios/app/busch-welcome/id920409045/reviews) |
| Number of ratings | 8 | **25** |
| Positive reviews | — | 25.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 38 MB | 116 MB |
| Requires iOS | 15.0 | **12** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DELTA DORE RADEMACHER GmbH](https://appshunter.io/developer/458037585) | [Busch-Jaeger Elektro GmbH](https://appshunter.io/developer/542311466) |

## What reviewers say

### Rademacher

[App page](https://appshunter.io/ios/app/rademacher/id458037582)

Control your integrated DuoFern smart home devices remotely via smartphone or tablet. Monitor device status, adjust settings like temperature and lighting, and receive push notifications for updates. Configure your central unit, set up automations, and create custom scenes.

**Highlights:** Remote device control, Real-time status monitoring, Customizable dashboard, Push notifications, Thermostat and shutter controls, Automation and scene creation, Central unit configuration

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

**In-app purchases:** none


### Busch

[App page](https://appshunter.io/ios/app/busch-welcome/id920409045)

This app allows you to manage your home's door communication system directly from your smartphone or tablet. See and hear visitors, open doors, and control lights remotely. Connects to your existing Welcome system for seamless integration.

**Highlights:** Receive door calls on mobile device, See and hear visitors, Remote door opening, Control lights, View door call history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rademacher free?

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

### Is Busch free?

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

### Which has better reviews, Rademacher or Busch?

Rademacher is rated higher. Rademacher averages 4.8 out of 5 from 8 ratings, while Busch averages 3.2 from 25 ratings.

### Do Rademacher or Busch have ads?

Neither Rademacher nor Busch shows ads.

### Which is updated more often, Rademacher or Busch?

Rademacher ships an update every 7 months, and Busch every 5 months. Most recently, Rademacher was updated on September 17, 2026 and Busch on August 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.*