# Shift Happens vs Work Shift Calendar

The clearest difference is in-app purchases: Shift Happens at none against Work Shift Calendar's 3. Shift Happens also leads on iOS requirement (15.1 vs 17.0). Work Shift Calendar's advantage is update cadence (every 2 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Work Shift Calendar sells 3 in-app purchases, starting at $1.99 per 7 days. Shift Happens asks for nothing beyond the download.

Shift Happens ships an update weekly, Work Shift Calendar every 2 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Shift Happens | Work Shift Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Size | 29 MB | 29 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ROBERT DOMINIC MCGREGOR](https://appshunter.io/developer/1847037209) | [DASHFIT LTD](https://appshunter.io/developer/1630541944) |

## What reviewers say

### Shift Happens

[App page](https://appshunter.io/ios/app/shift-happens/id6754194287)

**Features:** macOS Compatibility

**In-app purchases:** none


### Work Shift Calendar

[App page](https://appshunter.io/ios/app/work-shift-calendar-shiftcal/id6756549897)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Annual Premium | $9.99 | per year |
| Lifetime Premium | $34.99 | one-time |


## Frequently asked questions

### Is Shift Happens free?

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

### Is Work Shift Calendar free?

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

### Do Shift Happens or Work Shift Calendar have ads?

Both Shift Happens and Work Shift Calendar show ads.

### Which is updated more often, Shift Happens or Work Shift Calendar?

Shift Happens ships an update weekly, and Work Shift Calendar every 2 days. Most recently, Shift Happens was updated on October 5, 2026 and Work Shift Calendar on October 3, 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.*