# Black Clock vs 20 Girls Clock

The clearest difference is price: 20 Girls Clock at Free against Black Clock's $4.99. 20 Girls Clock also leads on update cadence (fortnightly vs every 9 months). Black Clock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

20 Girls Clock is free to download; Black Clock costs $4.99 up front. 20 Girls Clock sells 1 one-off in-app purchase. Black Clock asks for nothing beyond the download.

Black Clock ships an update every 9 months, 20 Girls Clock fortnightly. Both last shipped on October 27, 2026.

## The numbers

| Metric | Black Clock | 20 Girls Clock |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 0 MB | 35 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MacMedia](https://appshunter.io/developer/322441361) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Black Clock

[App page](https://appshunter.io/ios/app/black-clock/id335519165)

A straightforward analog clock application offering a clean and simple design. It displays time with classic hands on a dial, providing an uncluttered visual experience for users who prefer traditional timekeeping.

**Highlights:** Simple design, Clean interface, Analog display, Classic clock hands

**Features:** Vision Pro support

**In-app purchases:** none


### 20 Girls Clock

[App page](https://appshunter.io/ios/app/20-girls-clock/id6454934847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Girls Clock with no ads | $1.99 | one-time |


## Frequently asked questions

### Is Black Clock free?

Black Clock costs $4.99, with no in-app purchases.

### Is 20 Girls Clock free?

20 Girls Clock is free to download, with in-app purchases available.

### Do Black Clock or 20 Girls Clock have ads?

20 Girls Clock shows ads; Black Clock does not.

### Which is updated more often, Black Clock or 20 Girls Clock?

Black Clock ships an update every 9 months, and 20 Girls Clock fortnightly. Most recently, Black Clock was updated on October 27, 2026 and 20 Girls Clock on October 27, 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.*