# World Cal vs WTO Scanner

The clearest difference is in-app purchases: WTO Scanner at none against World Cal's 1. WTO Scanner also leads on ads (none vs shown). World Cal's advantage is device support (4 vs 2) and iOS requirement (16.6 vs 18.0). On price and update cadence there is nothing between them.

Both are free to download. World Cal sells 1 one-off in-app purchase. WTO Scanner asks for nothing beyond the download.

World Cal ships an update every 4 months, WTO Scanner every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | World Cal | WTO Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (315 ratings)](https://appshunter.io/ios/app/world-cal/id792552743/reviews)** | — |
| Number of ratings | **315** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 148 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Geospike Pty Ltd](https://appshunter.io/developer/500622151) | [WTO Werkzeug-Einrichtungen GmbH](https://appshunter.io/developer/1533221720) |

## What reviewers say

### World Cal

[App page](https://appshunter.io/ios/app/world-cal/id792552743)

Easily schedule global meetings and events across different time zones. This app helps you find the perfect time for international calls and trips by comparing multiple time zones and integrating with your calendar.

**Highlights:** Cross-timezone scheduling, View calendar in multiple timezones, Time travel into the future, Add unlimited timezones, Day/night indicators, Home screen and watch widgets, DST accuracy

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising | $19.95 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🌍 Great for multiple time zones
- 💡 Simple and efficient
- ✅ Clear display
- 🤝 Helpful for international scheduling

**What reviewers complain about**

- 💰 Expensive ad-free version
- 🔞 Inappropriate ads in free version
- 💸 High price for functionality

**Reported bugs**

- 🐛 Inappropriate ads in free version
- 🐛 Widget settings not saved
- 🐛 Cannot add new events with double tap
- 🐛 Timezone abbreviations not displayed
- 🐛 Search feature doesn't work

**Requested features**

- Add more cities
- Option to freeze time zones for comparison
- Switch between 24-hour and AM/PM clock
- Cleaner design with better calendar event integration
- Ability to pick a specific date to view


### WTO Scanner

[App page](https://appshunter.io/ios/app/wto-scanner/id1628784515)

**In-app purchases:** none


## Frequently asked questions

### Is World Cal free?

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

### Is WTO Scanner free?

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

### Do World Cal or WTO Scanner have ads?

World Cal shows ads; WTO Scanner does not.

### Which is updated more often, World Cal or WTO Scanner?

World Cal ships an update every 4 months, and WTO Scanner every 2 months. Most recently, World Cal was updated on November 6, 2026 and WTO Scanner on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*