# World Clock vs ZoneFlip

The clearest difference is iOS requirement: World Clock at 15.1 against ZoneFlip's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. World Clock sells 1 one-off in-app purchase and ZoneFlip sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

World Clock ships an update every 5 weeks, ZoneFlip every 3 weeks. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | World Clock | ZoneFlip |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 41 MB | 0 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tomash Sugint](https://appshunter.io/developer/1896504334) | [永 张](https://appshunter.io/developer/1806535769) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-timeshift/id6768507524)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TimeShift Pro | $3.99 | one-time |


### ZoneFlip

[App page](https://appshunter.io/ios/app/zoneflip/id6785983114)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZoneFlip Pro | $4.99 | one-time |


## Frequently asked questions

### Is World Clock free?

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

### Is ZoneFlip free?

ZoneFlip is free to download, with in-app purchases available.

### Do World Clock or ZoneFlip have ads?

Neither World Clock nor ZoneFlip shows ads.

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

World Clock ships an update every 5 weeks, and ZoneFlip every 3 weeks. Most recently, World Clock was updated on October 20, 2026 and ZoneFlip 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.*