# Calculator. + vs World Clock

The clearest difference is price: Calculator. + at $0.99 against World Clock's $2.99. Calculator. + also leads on iOS requirement (10.0 vs 15.6). World Clock's advantage is device support. On in-app purchases there is nothing between them.

Calculator. + costs $0.99 and World Clock $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Calculator. + | World Clock |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 21 months |
| Monetization | — | Paid |
| Size | 2 MB | 11 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tamer Elsharqawy](https://appshunter.io/developer/686691900) | [俊 姜](https://appshunter.io/developer/974809005) |

## What reviewers say

### Calculator. +

[App page](https://appshunter.io/ios/app/calculator-plus/id1099956664)

**In-app purchases:** none


### World Clock

[App page](https://appshunter.io/ios/app/world-clock-time-zone-wheel/id1213420284)

Visualize global time zones with a 3D Earth and Moon. This app displays local times for over 460 cities and offers a 3D/2D map view. It supports numerous system languages and provides detailed country and region information.

**Highlights:** 3D Earth and Moon visualization, Solar Clock feature, Over 460 cities' local time, 3D/2D Time Zone Map, Support for numerous system languages, Extensive country and region listing

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator. + free?

Calculator. + costs $0.99, with no in-app purchases.

### Is World Clock free?

World Clock costs $2.99, with no in-app purchases.

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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.*