# Set Theory Clock (BerlinClock) vs DE

The clearest difference is review sentiment: DE at 100% against Set Theory Clock (BerlinClock)'s 0%. Set Theory Clock (BerlinClock)'s advantage is price (Free vs $0.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Set Theory Clock (BerlinClock) is free to download; DE costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Set Theory Clock (BerlinClock) | DE |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/set-theory-clock-berlinclock/id972665637/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 129 months | — |
| Monetization | **Free** | Paid |
| Size | 2 MB | 3 MB |
| Requires iOS | 17.6 | **17.2** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Neumann](https://appshunter.io/developer/972665636) | [Tino Bahr](https://appshunter.io/developer/1734175117) |

## What reviewers say

### Set Theory Clock (BerlinClock)

[App page](https://appshunter.io/ios/app/set-theory-clock-berlinclock/id972665637)

This app displays time using the unique Berlin Clock system, featuring 24 lamps arranged in four rows to represent hours and minutes. It offers a visually distinct way to tell time, with lamps lighting up sequentially to indicate the passing of time.

**Highlights:** 24-lamp display, Hour representation (5-hour and 1-hour lamps), Minute representation (5-minute and 1-minute lamps), Sequential lamp lighting, Unique time visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### DE

[App page](https://appshunter.io/ios/app/de-radiation/id6480473182)

This app displays real-time and historical radiation measurements from stations across Germany. It allows users to find nearby stations, view their operational status, and access data up to 365 days in the past. The information is sourced from the ODL monitoring network.

**Highlights:** Interactive radiation map, View current and past measurements, Find nearest measurement station, Check station operational status, Access 365 days of historical data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Set Theory Clock (BerlinClock) free?

Set Theory Clock (BerlinClock) is free to download, with no in-app purchases.

### Is DE free?

DE costs $0.99, with no in-app purchases.

### Do Set Theory Clock (BerlinClock) or DE have ads?

Neither Set Theory Clock (BerlinClock) nor DE shows ads.

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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.*