# World Time Clock vs LIBCORN

The clearest difference is in-app purchases: LIBCORN at none against World Time Clock's 1. LIBCORN also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.1). World Time Clock's advantage is update cadence (every 2 weeks vs every 17 months). On price and device support there is nothing between them.

Both are free to download. World Time Clock sells 1 one-off in-app purchase. LIBCORN asks for nothing beyond the download.

World Time Clock ships an update every 2 weeks, LIBCORN every 17 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | World Time Clock | LIBCORN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/world-time-clock-weather-and-map/id6469668390/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 17 months |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 54 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hajime Suzuki](https://appshunter.io/developer/1615906018) | [Instalaxmi Private Limited](https://appshunter.io/developer/1623763280) |

## What reviewers say

### World Time Clock

[App page](https://appshunter.io/ios/app/world-time-clock-weather-and-map/id6469668390)

This app helps you track time differences across multiple cities, with real-time sunrise and sunset notifications. It's useful for business by monitoring stock market hours and partner work times, offering a visual representation of day and night cycles globally.

**Highlights:** Real-time sunrise and sunset notifications, Business hour tracking for stock markets and partners, Calculates time differences with home city as standard, Visual day/night line with seasonal changes, Weather, temperature, and humidity display, Covers approximately 600 major cities

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanent purchase | $7.99 | one-time |


### LIBCORN

[App page](https://appshunter.io/ios/app/libcorn/id6743625877)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Time Clock free?

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

### Is LIBCORN free?

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

### Do World Time Clock or LIBCORN have ads?

World Time Clock shows ads; LIBCORN does not.

### Which is updated more often, World Time Clock or LIBCORN?

World Time Clock ships an update every 2 weeks, and LIBCORN every 17 months. Most recently, World Time Clock was updated on October 6, 2026 and LIBCORN on October 10, 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.*