# World Time Clock Master vs ZIP Extractor・Unzip・Opener

The clearest difference is monetization model: ZIP Extractor・Unzip・Opener at free with in-app purchases against World Time Clock Master's subscription. ZIP Extractor・Unzip・Opener also leads on review sentiment (100% vs 66%). World Time Clock Master's advantage is ads (none vs shown) and ratings volume (816 vs 16). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month and ZIP Extractor・Unzip・Opener sells 4 in-app purchases, starting at $1.49 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for World Time Clock Master against 4.5 for ZIP Extractor・Unzip・Opener. That said, the two scores are not equally well evidenced: World Time Clock Master has 816 ratings behind it against 16, so its average is the more settled of the two. Written reviews are what separate them: 66% of World Time Clock Master's written reviews are positive against 100% of ZIP Extractor・Unzip・Opener's.

## The numbers

| Metric | World Time Clock Master | ZIP Extractor・Unzip・Opener |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (816 ratings)](https://appshunter.io/ios/app/world-time-clock-master/id6448859727/reviews)** | [4.5 (16 ratings)](https://appshunter.io/ios/app/zip-extractorunzipopener/id6739285627/reviews) |
| Number of ratings | **816** | 16 |
| Positive reviews | 65.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 236 MB | 12 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alex Komarov Inc.](https://appshunter.io/developer/364741805) | [Kartika Ardiani](https://appshunter.io/developer/1777769813) |

## What reviewers say

### World Time Clock Master

[App page](https://appshunter.io/ios/app/world-time-clock-master/id6448859727)

Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.

**Highlights:** Multiple time zone display, Interactive time conversion, Event scheduling, Atomic time accuracy, Dynamic home screen widgets, List mode for text view, Real moon phases and sunrise/sunset

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $2.99 | per month |
| 3 months | $3.99 | per 3 months |
| 1 year | $11.99 | per year |
| 1 year | $11.99 | per year |
| 1 year | $11.99 | per year |
| 1 year | $19.99 | per year |
| Lifetime | $29.99 | one-time |
| Lifetime | $49.99 | one-time |
| Lifetime | $79.99 | one-time |
| Lifetime | $99.99 | one-time |

**What reviewers like**

- 🚀 Delightful scheduling assistance
- 👍 Feature improvement
- 👍 The best Timezone helper
- 👍 One of the best clocks around
- 👍 The Widget is so damn cool!

**What reviewers complain about**

- 🐛 Problemas al actualizar
- 🐛 Sticky signup interface
- 🐛 Demo not enough
- 🔒 NOT A FREE APP
- 💰 Terrible monetisation model compared to previous app

**Reported bugs**

- Lose all the registered locations after updating the app
- Sticky signup interface
- Widget doesn't work
- GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time

**Requested features**

- Add the time difference in hours between the default location and other locations in both the widget and the app
- See my calendar events on the dial
- Make a paid tier that doesn't collect my data
- Add new event to a Calendar


### ZIP Extractor・Unzip・Opener

[App page](https://appshunter.io/ios/app/zip-extractorunzipopener/id6739285627)

Easily extract and manage zip files with this offline tool. Share files, access your zip history, and simplify your workflow for personal or professional documents. Premium features are available through subscription.

**Highlights:** Extract zip files, Share files, Access zip history, Offline functionality, Intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZIP Opener Pro - 1W | $1.49 | per 7 days |
| Unzip Pro - 1M | $3.99 | per month |
| ZIP Reader Pro - 1Y | $19.99 | per year |
| ZIP Extractor Pro | $39.99 | one-time |


## Frequently asked questions

### Is World Time Clock Master free?

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

### Is ZIP Extractor・Unzip・Opener free?

ZIP Extractor・Unzip・Opener is free to download, with in-app purchases available.

### Which has better reviews, World Time Clock Master or ZIP Extractor・Unzip・Opener?

World Time Clock Master is rated higher. World Time Clock Master averages 4.6 out of 5 from 816 ratings, while ZIP Extractor・Unzip・Opener averages 4.5 from 16 ratings.

### Do World Time Clock Master or ZIP Extractor・Unzip・Opener have ads?

ZIP Extractor・Unzip・Opener shows ads; World Time Clock Master does not.

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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.*