# World Clock vs SubEraser

The clearest difference is price: World Clock at Free against SubEraser's $3.99. World Clock also leads on iOS requirement (13.0 vs 18.4). SubEraser's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On in-app purchases and device support there is nothing between them.

World Clock is free to download; SubEraser costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

World Clock ships an update every 3 months, SubEraser monthly. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | World Clock | SubEraser |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.8 (600 ratings)](https://appshunter.io/ios/app/world-clock-timezone-converter/id1425332311/reviews)** | — |
| Number of ratings | **600** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 33 MB | 2 MB |
| Requires iOS | **13.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bokeria](https://appshunter.io/developer/1425332310) | [Cedrik Razafimanantsoa](https://appshunter.io/developer/1810428729) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-timezone-converter/id1425332311)

Easily convert time zones and check the current time in any region worldwide. This tool helps you stay connected with friends abroad, manage international meetings, and plan travel by accurately displaying dates and times across different locations.

**Highlights:** Convert time zones freely, Search time in any area, Check time for friends abroad, Manage international conferences, Set up widgets, Set theme color, Set UTC and standard times

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🆓 Free application with no paywall
- 🌍 Comprehensive timezone and city database
- ⚡ Fast app performance and quick load times
- 🔄 Automatic daylight saving time updates

**What reviewers complain about**

- 🐛 Widget displays incorrect or blank times
- 🐛 Time display stuck or frozen
- ⚠️ Daylight saving time handling issues
- 🐛 Night mode compatibility problems
- 🐛 Screen flickering when scrolling

**Reported bugs**

- Widget showing blank screen instead of times
- Widget time display stuck or frozen
- Incorrect time display after daylight saving changes
- Widget not working on night mode
- Screen flickering when scrolling

**Requested features**

- Alarm functionality for multiple timezones
- Larger widget size options (2x2, 3x3)
- Widget theme/color customization
- Seconds display in time
- Real-time minute updates


### SubEraser

[App page](https://appshunter.io/ios/app/suberaser/id6745708274)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is World Clock free?

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

### Is SubEraser free?

SubEraser costs $3.99, with no in-app purchases.

### Do World Clock or SubEraser have ads?

World Clock shows ads; SubEraser does not.

### Which is updated more often, World Clock or SubEraser?

World Clock ships an update every 3 months, and SubEraser monthly. Most recently, World Clock was updated on October 12, 2026 and SubEraser on September 30, 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.*