# World Clock vs QuantaTime

The clearest difference is in-app purchases: World Clock at none against QuantaTime's 4. World Clock also leads on iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. QuantaTime sells 4 in-app purchases, starting at $1.99 per month. World Clock asks for nothing beyond the download.

## The numbers

| Metric | World Clock | QuantaTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 27 MB | 14 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [GO DAEHUN](https://appshunter.io/developer/1780930404) | [Talon Strike Software](https://appshunter.io/developer/558604945) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-time-calculator/id6739600701)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuantaTime

[App page](https://appshunter.io/ios/app/quantatime/id6742660826)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Quarterly | $2.99 | per 3 months |
| Yearly | $5.99 | per year |
| Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is World Clock free?

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

### Is QuantaTime free?

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

### Do World Clock or QuantaTime have ads?

Neither World Clock nor QuantaTime 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.*