# Black Clock vs Time Zone Converter

The clearest difference is price: Time Zone Converter at Free against Black Clock's $4.99. Time Zone Converter also leads on review sentiment (100% vs 57%) and update cadence (every 3 months vs every 9 months). Black Clock's advantage is chart position (#191 vs unranked) and iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Time Zone Converter is free to download; Black Clock costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Black Clock ships an update every 9 months, Time Zone Converter every 3 months. The most recent releases landed on September 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Black Clock | Time Zone Converter |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/time-zone-converter-sleeko/id6737797170/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 57.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#191** | — |
| Size | 0 MB | 33 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MacMedia](https://appshunter.io/developer/322441361) | [Nischal Gautam](https://appshunter.io/developer/1777975374) |

## What reviewers say

### Black Clock

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

**Currently charting:** #191 Top Paid · Utilities (US App Store)

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


### Time Zone Converter

[App page](https://appshunter.io/ios/app/time-zone-converter-sleeko/id6737797170)

Easily track multiple time zones, convert times between cities, and customize clock displays. This app helps travelers, remote workers, and global teams stay organized and avoid missing deadlines.

**Highlights:** Track multiple time zones, Instant time conversion, Customizable clock display, Seamless scheduling tools, Global time management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Black Clock free?

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

### Is Time Zone Converter free?

Time Zone Converter is free to download, with no in-app purchases.

### Do Black Clock or Time Zone Converter have ads?

Neither Black Clock nor Time Zone Converter shows ads.

### Which is updated more often, Black Clock or Time Zone Converter?

Black Clock ships an update every 9 months, and Time Zone Converter every 3 months. Most recently, Black Clock was updated on September 26, 2026 and Time Zone Converter on October 4, 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.*