# Approximationist World Clock vs Shift Work Calendar

The clearest difference is price: Shift Work Calendar at Free against Approximationist World Clock's $0.99. Approximationist World Clock's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Shift Work Calendar is free to download; Approximationist World Clock costs $0.99 up front. Shift Work Calendar sells 2 in-app purchases, starting at $2.99 per month. Approximationist World Clock asks for nothing beyond the download.

## The numbers

| Metric | Approximationist World Clock | Shift Work Calendar |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/approximationist-world-clock/id6762967230/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 2 MB | 14 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simply Useful Apps](https://appshunter.io/developer/321416742) | [Vladyslav Dmytriiev](https://appshunter.io/developer/1878687993) |

## What reviewers say

### Approximationist World Clock

[App page](https://appshunter.io/ios/app/approximationist-world-clock/id6762967230)

This app simplifies understanding global time zones with a focus on approximations rather than exact minutes. It helps users quickly see if a time is suitable for others worldwide, making coordination easier for remote teams, travelers, and families.

**Highlights:** Approximation-first time zone display, Compare multiple cities at a glance, Quick overlap spotting for availability, Human-friendly time descriptions, Time slider functionality, Export/import and share team info

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

**In-app purchases:** none


### Shift Work Calendar

[App page](https://appshunter.io/ios/app/shift-work-calendar-plera/id6763265471)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plera Premium | $2.99 | per month |
| Plera Premium (Yearly) | $19.99 | per year |


## Frequently asked questions

### Is Approximationist World Clock free?

Approximationist World Clock costs $0.99, with no in-app purchases.

### Is Shift Work Calendar free?

Shift Work Calendar is free to download, with in-app purchases available.

### Do Approximationist World Clock or Shift Work Calendar have ads?

Neither Approximationist World Clock nor Shift Work Calendar shows ads.

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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.*