# World Clock vs ZoneTrekker

The clearest difference is price: World Clock at Free against ZoneTrekker's $3.99. World Clock also leads on rating (3.9 vs 3.4) and review sentiment (77% vs 63%). ZoneTrekker's advantage is ads (none vs shown). On ratings volume, in-app purchases, device support and iOS requirement there is nothing between them.

World Clock is free to download; ZoneTrekker costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

World Clock holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 14 and 5 respectively. Written reviews point the same way: 77% of World Clock's written reviews are positive against 63% of ZoneTrekker's.

World Clock ships an update every 6 weeks, ZoneTrekker every 3 months. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | World Clock | ZoneTrekker |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[3.9 (14 ratings)](https://appshunter.io/ios/app/world-clock-time-converter/id622366157/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/zonetrekker-world-clock/id1017583412/reviews) |
| Number of ratings | **14** | 5 |
| Positive reviews | **77.4% of reviews** | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Ad-supported** | Paid |
| Size | 6 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Fukui](https://appshunter.io/developer/575924491) | [ozPDA](https://appshunter.io/developer/295147488) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-time-converter/id622366157)

Easily calculate time differences worldwide by scrolling a dynamic time bar. Add any city, set specific dates and times, and plan international meetings or calls without manual calculations. The app syncs with iOS time data.

**Highlights:** Dynamic scrolling time bar, Add and manage cities, Direct date and time specification, Customizable city names, Time unit adjustment (minute/hour)

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

**In-app purchases:** none


### ZoneTrekker

[App page](https://appshunter.io/ios/app/zonetrekker-world-clock/id1017583412)

Track local time, weather, holidays, and timezones for any location worldwide. Customize lists, set alarms, and compare time differences with visual aids. Get detailed weather history and holiday information.

**Highlights:** Customizable location lists, Real-time local time and weather, Public holiday tracking, Timezone comparison charts, Location-based alarms, 24-hour weather history

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

**In-app purchases:** none


## Frequently asked questions

### Is World Clock free?

World Clock is free to download, with no in-app purchases.

### Is ZoneTrekker free?

ZoneTrekker costs $3.99, with no in-app purchases.

### Which has better reviews, World Clock or ZoneTrekker?

World Clock is rated higher. World Clock averages 3.9 out of 5 from 14 ratings, while ZoneTrekker averages 3.4 from 5 ratings.

### Do World Clock or ZoneTrekker have ads?

World Clock shows ads; ZoneTrekker does not.

### Which is updated more often, World Clock or ZoneTrekker?

World Clock ships an update every 6 weeks, and ZoneTrekker every 3 months. Most recently, World Clock was updated on November 6, 2026 and ZoneTrekker on November 9, 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.*