# World Clock & Time Zones vs Time Zone Difference Planner

The clearest difference is update cadence: World Clock & Time Zones at monthly against Time Zone Difference Planner's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. World Clock & Time Zones sells 3 in-app purchases, starting at $2.99 per 7 days and Time Zone Difference Planner sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

World Clock & Time Zones ships an update monthly, Time Zone Difference Planner every 4 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | World Clock & Time Zones | Time Zone Difference Planner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 11 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### World Clock & Time Zones

[App page](https://appshunter.io/ios/app/world-clock-and-time-zones/id6771495827)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |
| Lifetime Pro | $29.99 | one-time |


### Time Zone Difference Planner

[App page](https://appshunter.io/ios/app/time-zone-difference-planner/id6772262657)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| World Clock Weekly | $2.99 | per 7 days |
| Remote Work Yearly | $14.99 | per year |
| UTC Converter Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is World Clock & Time Zones free?

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

### Is Time Zone Difference Planner free?

Time Zone Difference Planner is free to download, with in-app purchases available.

### Do World Clock & Time Zones or Time Zone Difference Planner have ads?

Neither World Clock & Time Zones nor Time Zone Difference Planner shows ads.

### Which is updated more often, World Clock & Time Zones or Time Zone Difference Planner?

World Clock & Time Zones ships an update monthly, and Time Zone Difference Planner every 4 months. Most recently, World Clock & Time Zones was updated on October 31, 2026 and Time Zone Difference Planner 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.*