# Time Zone Converter vs 레트로 시계

The clearest difference is update cadence: 레트로 시계 at fortnightly against Time Zone Converter's every 3 months. 레트로 시계 also leads on iOS requirement (13.0 vs 15.1). 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.

Time Zone Converter ships an update every 3 months, 레트로 시계 fortnightly. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Time Zone Converter | 레트로 시계 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/time-zone-converter-sleeko/id6737797170/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 33 MB | 15 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nischal Gautam](https://appshunter.io/developer/1777975374) | [YOUNGJOO KIM](https://appshunter.io/developer/1851492729) |

## What reviewers say

### 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


### 레트로 시계

[App page](https://appshunter.io/ios/app/id6760407197)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Zone Converter free?

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

### Is 레트로 시계 free?

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

### Do Time Zone Converter or 레트로 시계 have ads?

Neither Time Zone Converter nor 레트로 시계 shows ads.

### Which is updated more often, Time Zone Converter or 레트로 시계?

Time Zone Converter ships an update every 3 months, and 레트로 시계 fortnightly. Most recently, Time Zone Converter was updated on October 21, 2026 and 레트로 시계 on October 16, 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.*