# WorldTime Calendar vs OffTime

The clearest difference is in-app purchases: OffTime at none against WorldTime Calendar's 3. WorldTime Calendar's advantage is update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WorldTime Calendar sells 3 in-app purchases, starting at $0.39 per month. OffTime asks for nothing beyond the download.

WorldTime Calendar ships an update daily, OffTime fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | WorldTime Calendar | OffTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Fortnightly |
| Size | 10 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [均 周](https://appshunter.io/developer/6780701711) | [婷 李](https://appshunter.io/developer/1871717239) |

## What reviewers say

### 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 |


### OffTime

[App page](https://appshunter.io/ios/app/offtime-world-clock-and-widget/id6794565774)

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

**In-app purchases:** none


## Frequently asked questions

### Is WorldTime Calendar free?

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

### Is OffTime free?

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

### Do WorldTime Calendar or OffTime have ads?

Neither WorldTime Calendar nor OffTime shows ads.

### Which is updated more often, WorldTime Calendar or OffTime?

WorldTime Calendar ships an update daily, and OffTime fortnightly. Most recently, WorldTime Calendar was updated on October 24, 2026 and OffTime on October 24, 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.*