# World Sync vs Atomic Clock App

The clearest difference is price: World Sync at Free against Atomic Clock App's $2.99. Atomic Clock App's advantage is iOS requirement (15.1 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

World Sync is free to download; Atomic Clock App costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | World Sync | Atomic Clock App |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/world-sync/id6751124597/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 18 MB | 31 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [One47](https://appshunter.io/developer/1674457486) | [Gianfranco Antenucci](https://appshunter.io/developer/1875606849) |

## What reviewers say

### World Sync

[App page](https://appshunter.io/ios/app/world-sync/id6751124597)

Easily check and compare current or future times across multiple global locations. Coordinate meetings, travel, or connect with loved ones worldwide with a simple scroll interface. No account setup required for instant global time awareness.

**Highlights:** Compare time across unlimited cities, Scroll to view future times, Add and manage custom city lists, Daylight saving time insights, Immediate use without account setup, Smart location setup

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic Clock App

[App page](https://appshunter.io/ios/app/atomic-clock-app/id6760158311)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Sync free?

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

### Is Atomic Clock App free?

Atomic Clock App costs $2.99, with no in-app purchases.

### Do World Sync or Atomic Clock App have ads?

Neither World Sync nor Atomic Clock App shows ads.

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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.*