# Clock4Key World Clock Keyboard vs Calculator Ultra

The clearest difference is device support: Clock4Key World Clock Keyboard at 3 against Calculator Ultra's —. Clock4Key World Clock Keyboard also leads on iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Clock4Key World Clock Keyboard | Calculator Ultra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clock4key-world-clock-keyboard/id6503244597/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Daily | — |
| Monetization | Free | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Khang Le](https://appshunter.io/developer/1078541780) | [phakin chatngamapichat](https://appshunter.io/developer/6792130022) |

## What reviewers say

### Clock4Key World Clock Keyboard

[App page](https://appshunter.io/ios/app/clock4key-world-clock-keyboard/id6503244597)

This custom keyboard allows users to quickly input the current time for major cities worldwide directly from their device's keyboard. It offers real-time global time updates and an intuitive design for efficient time zone coordination.

**Highlights:** Instant time input for global cities, Real-time worldwide time updates, Seamless keyboard integration, Avoids manual time conversions, Ideal for travelers and professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator Ultra

[App page](https://appshunter.io/ios/app/calculator-ultra-smart-math/id6792903428)

**In-app purchases:** none


## Frequently asked questions

### Is Clock4Key World Clock Keyboard free?

Clock4Key World Clock Keyboard is free to download, with no in-app purchases.

### Is Calculator Ultra free?

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

---

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