# Time Zone Pro vs WorldTime Calendar

The clearest difference is update cadence: WorldTime Calendar at daily against Time Zone Pro's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Time Zone Pro sells 1 one-off in-app purchase and WorldTime Calendar sells 3 in-app purchases, starting at $0.39 per month. Whichever you choose, the download price is not the number that matters.

Time Zone Pro ships an update every 3 months, WorldTime Calendar daily. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Time Zone Pro | WorldTime Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/time-zone-pro-world-clock/id6759158294/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 10 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shahid Shaikh](https://appshunter.io/developer/1812361943) | [均 周](https://appshunter.io/developer/6780701711) |

## What reviewers say

### Time Zone Pro

[App page](https://appshunter.io/ios/app/time-zone-pro-world-clock/id6759158294)

Effortlessly compare time across multiple cities with a shared reference system. Drag a slider to instantly see the time everywhere, perfect for remote teams and international scheduling. Plan with confidence without mental math or guessing.

**Highlights:** Shared reference time, Interactive 24-hour slider, Real-time synchronized updates, Day & night visual indicators, Dark theme design, 12h / 24h toggle

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Zone Pro – Lifetime | $3.99 | one-time |


### WorldTime Calendar

[App page](https://appshunter.io/ios/app/worldtime-calendar/id6780894412)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WorldTime Pro Monthly | $0.39 | per month |
| WorldTime Pro Half-Year | $1.49 | per 6 months |
| WorldTime Pro Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Time Zone Pro free?

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

### Is WorldTime Calendar free?

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

### Do Time Zone Pro or WorldTime Calendar have ads?

Neither Time Zone Pro nor WorldTime Calendar shows ads.

### Which is updated more often, Time Zone Pro or WorldTime Calendar?

Time Zone Pro ships an update every 3 months, and WorldTime Calendar daily. Most recently, Time Zone Pro was updated on November 8, 2026 and WorldTime Calendar on November 5, 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.*