# Clockwise vs Pro Calculator Kit

The clearest difference is in-app purchases: Clockwise at none against Pro Calculator Kit's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pro Calculator Kit sells 3 in-app purchases, starting at $0.99 per month. Clockwise asks for nothing beyond the download.

Clockwise ships an update every 6 weeks, Pro Calculator Kit every 2 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Clockwise | Pro Calculator Kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/clockwise-time-zone-tracker/id6470056395/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 35 MB | 2 MB |
| Requires iOS | **16.1** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Brittany Petrova](https://appshunter.io/developer/1712922919) | [双伟 王](https://appshunter.io/developer/1861136667) |

## What reviewers say

### Clockwise

[App page](https://appshunter.io/ios/app/clockwise-time-zone-tracker/id6470056395)

Easily track time zones for friends, family, and colleagues worldwide. Features dynamic backgrounds, personalized photos, and home-screen widgets for at-a-glance updates. Supports over 200k locations, even offline, and syncs across devices via iCloud.

**Highlights:** Automatic time zone detection, Time scrubbing for planning, Dynamic sky backgrounds, Personalized contact photos, Home-screen widgets, Daylight Saving Time alerts, Offline location database

**In-app purchases:** none


### Pro Calculator Kit

[App page](https://appshunter.io/ios/app/pro-calculator-kit/id6760807578)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annual | $4.99 | per year |
| Lifetime Pro | $6.99 | one-time |


## Frequently asked questions

### Is Clockwise free?

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

### Is Pro Calculator Kit free?

Pro Calculator Kit is free to download, with in-app purchases available.

### Do Clockwise or Pro Calculator Kit have ads?

Neither Clockwise nor Pro Calculator Kit shows ads.

### Which is updated more often, Clockwise or Pro Calculator Kit?

Clockwise ships an update every 6 weeks, and Pro Calculator Kit every 2 months. Most recently, Clockwise was updated on October 8, 2026 and Pro Calculator Kit on October 2, 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.*