# ContentryOS vs Shift Calendar

The clearest difference is in-app purchases: Shift Calendar at none against ContentryOS's 3. Shift Calendar also leads on iOS requirement (15.0 vs 17.0). ContentryOS's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ContentryOS sells 3 in-app purchases, starting at $4.99 per month. Shift Calendar asks for nothing beyond the download.

ContentryOS ships an update monthly, Shift Calendar every 5 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ContentryOS | Shift Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 27 MB | 39 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muratcan icdag](https://appshunter.io/developer/6773341704) | [Berke YILMAZ](https://appshunter.io/developer/6779793160) |

## What reviewers say

### ContentryOS

[App page](https://appshunter.io/ios/app/contentryos/id6773495547)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contentrylab Pro Aylık | $4.99 | per month |
| Contentrylab Pro Yıllık | $39.99 | per year |
| 20 Ek Sorgu | $4.99 | one-time |


### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-work-roster/id6779793158)

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

**In-app purchases:** none


## Frequently asked questions

### Is ContentryOS free?

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

### Is Shift Calendar free?

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

### Do ContentryOS or Shift Calendar have ads?

Shift Calendar shows ads; ContentryOS does not.

### Which is updated more often, ContentryOS or Shift Calendar?

ContentryOS ships an update monthly, and Shift Calendar every 5 weeks. Most recently, ContentryOS was updated on October 8, 2026 and Shift Calendar on October 11, 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.*