# World Clock vs One Moment Timer

The clearest difference is update cadence: One Moment Timer at every 2 days against World Clock's every 6 weeks. 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.

World Clock ships an update every 6 weeks, One Moment Timer every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | World Clock | One Moment Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 44 MB | 40 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bhavin Harsoda](https://appshunter.io/developer/1896732789) | [宗辉 王](https://appshunter.io/developer/1584610956) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-time-zone-map/id6783319600)

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

**In-app purchases:** none


### One Moment Timer

[App page](https://appshunter.io/ios/app/one-moment-timer/id6802983532)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Clock free?

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

### Is One Moment Timer free?

One Moment Timer is free to download, with no in-app purchases.

### Do World Clock or One Moment Timer have ads?

Neither World Clock nor One Moment Timer shows ads.

### Which is updated more often, World Clock or One Moment Timer?

World Clock ships an update every 6 weeks, and One Moment Timer every 2 days. Most recently, World Clock was updated on November 5, 2026 and One Moment Timer on October 31, 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.*