# Set Theory Clock (BerlinClock) vs Word Clock Pro

The clearest difference is review sentiment: Word Clock Pro at 50% against Set Theory Clock (BerlinClock)'s 0%. Word Clock Pro also leads on rating (4.0 vs 3.0) and update cadence (every 10 days vs every 129 months). Set Theory Clock (BerlinClock)'s advantage is price (Free vs $3.99). On ratings volume, ads and in-app purchases there is nothing between them.

Set Theory Clock (BerlinClock) is free to download; Word Clock Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Word Clock Pro holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of Set Theory Clock (BerlinClock)'s written reviews are positive against 50% of Word Clock Pro's.

Set Theory Clock (BerlinClock) ships an update every 129 months, Word Clock Pro every 10 days. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Set Theory Clock (BerlinClock) | Word Clock Pro |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/set-theory-clock-berlinclock/id972665637/reviews) | **[4.0 (2 ratings)](https://appshunter.io/ios/app/word-clock-pro-widget/id6756194050/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 129 months | **Every 10 days** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 38 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Neumann](https://appshunter.io/developer/972665636) | [Vasic Stefan](https://appshunter.io/developer/1711365101) |

## 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


### Word Clock Pro

[App page](https://appshunter.io/ios/app/word-clock-pro-widget/id6756194050)

This app displays the current time using words instead of numbers, offering a typographic and minimalist approach to timekeeping. Customize themes, fonts, and precision modes to create a unique visual experience on your home screen, desktop, or wearable device.

**Highlights:** Home Screen Widgets, Desk, Ambient, and Kiosk Modes, Customizable Themes and Fonts, Multi-Language Support, Apple Watch Companion App, iCloud Sync

**Features:** Apple Watch app

**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 Word Clock Pro free?

Word Clock Pro costs $3.99, with no in-app purchases.

### Which has better reviews, Set Theory Clock (BerlinClock) or Word Clock Pro?

Word Clock Pro is rated higher. Set Theory Clock (BerlinClock) averages 3.0 out of 5 from 2 ratings, while Word Clock Pro averages 4.0 from 2 ratings.

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

Neither Set Theory Clock (BerlinClock) nor Word Clock Pro shows ads.

### Which is updated more often, Set Theory Clock (BerlinClock) or Word Clock Pro?

Set Theory Clock (BerlinClock) ships an update every 129 months, and Word Clock Pro every 10 days. Most recently, Set Theory Clock (BerlinClock) was updated on September 9, 2026 and Word Clock Pro on September 13, 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.*