# Shift Work Calendar vs CalShift

The clearest difference is ads: CalShift at none against Shift Work Calendar's shown. CalShift also leads on iOS requirement (13.0 vs 15.0). Shift Work Calendar's advantage is update cadence (every 9 days vs every 3 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Shift Work Calendar sells 4 one-off in-app purchases and CalShift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Shift Work Calendar ships an update every 9 days, CalShift every 3 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Shift Work Calendar | CalShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 months |
| Size | 134 MB | 30 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Salomo Interiors S.L.](https://appshunter.io/developer/1688530007) | [Zhihao Yang](https://appshunter.io/developer/1466209376) |

## What reviewers say

### Shift Work Calendar

[App page](https://appshunter.io/ios/app/shift-work-calendar-simple/id6751168161)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Premium | $1.99 | one-time |
| Unlock All | $1.99 | one-time |
| Unlock All + Remove Ads | $1.99 | one-time |


### CalShift

[App page](https://appshunter.io/ios/app/calshift-shift-work-calendar/id6758676304)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Shift Pro | $0.99 | one-time |


## Frequently asked questions

### Is Shift Work Calendar free?

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

### Is CalShift free?

CalShift is free to download, with in-app purchases available.

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

Shift Work Calendar shows ads; CalShift does not.

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

Shift Work Calendar ships an update every 9 days, and CalShift every 3 months. Most recently, Shift Work Calendar was updated on October 12, 2026 and CalShift on October 13, 2026.

---

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