# Rademacher vs When Was It?

The clearest difference is update cadence: When Was It? at every 4 days against Rademacher's every 7 months. Rademacher's advantage is iOS requirement (15.0 vs 17.0). 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.

Rademacher ships an update every 7 months, When Was It? every 4 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Rademacher | When Was It? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/rademacher/id458037582/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 38 MB | 32 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DELTA DORE RADEMACHER GmbH](https://appshunter.io/developer/458037585) | [Meet Thakkar](https://appshunter.io/developer/1708970260) |

## 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


### When Was It?

[App page](https://appshunter.io/ios/app/when-was-it/id6476149866)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is Rademacher free?

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

### Is When Was It? free?

When Was It? is free to download, with no in-app purchases.

### Do Rademacher or When Was It? have ads?

Neither Rademacher nor When Was It? shows ads.

### Which is updated more often, Rademacher or When Was It??

Rademacher ships an update every 7 months, and When Was It? every 4 days. Most recently, Rademacher was updated on October 5, 2026 and When Was It? on September 30, 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.*