# ProShift vs CalShift

The clearest difference is in-app purchases: ProShift at none against CalShift's 1. CalShift's advantage is device support and iOS requirement (13.0 vs 15.6). On price and update cadence there is nothing between them.

Both are free to download. CalShift sells 1 one-off in-app purchase. ProShift asks for nothing beyond the download.

ProShift ships an update every 2 months, CalShift every 3 months. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ProShift | CalShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 82 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Viktor Leongard](https://appshunter.io/developer/1571041059) | [Zhihao Yang](https://appshunter.io/developer/1466209376) |

## What reviewers say

### ProShift

[App page](https://appshunter.io/ios/app/proshift/id6478457512)

**In-app purchases:** none


### 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 ProShift free?

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

### Is CalShift free?

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

### Which is updated more often, ProShift or CalShift?

ProShift ships an update every 2 months, and CalShift every 3 months. Most recently, ProShift was updated on September 11, 2026 and CalShift on September 10, 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.*