# Time Zone Difference Planner vs World Time Zones App

The clearest difference is ads: Time Zone Difference Planner at none against World Time Zones App's shown. World Time Zones App's advantage is update cadence (every 3 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Time Zone Difference Planner sells 3 in-app purchases, starting at $2.99 per 7 days and World Time Zones App sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Time Zone Difference Planner ships an update every 4 months, World Time Zones App every 3 weeks. The most recent releases landed on October 26, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Time Zone Difference Planner | World Time Zones App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 5 MB | 45 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) |

## What reviewers say

### 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 |


### World Time Zones App

[App page](https://appshunter.io/ios/app/world-time-zones-app/id6772571983)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium · 1 week | $0.99 | per 7 days |
| Premium · 1 month | $1.99 | per month |
| Premium · 1 year | $9.99 | per year |
| Premium · Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Time Zone Difference Planner free?

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

### Is World Time Zones App free?

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

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

World Time Zones App shows ads; Time Zone Difference Planner does not.

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

Time Zone Difference Planner ships an update every 4 months, and World Time Zones App every 3 weeks. Most recently, Time Zone Difference Planner was updated on October 26, 2026 and World Time Zones App on October 3, 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.*