# ZappID vs Shift Work Calendar

The clearest difference is in-app purchases: ZappID at none against Shift Work Calendar's 2. ZappID also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Shift Work Calendar sells 2 in-app purchases, starting at $6.99 per month. ZappID asks for nothing beyond the download.

ZappID ships an update every 4 days, Shift Work Calendar every 3 weeks. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ZappID | Shift Work Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (292 ratings)](https://appshunter.io/ios/app/shift-work-calendar-scedu/id6478971643/reviews)** |
| Number of ratings | — | **292** |
| Positive reviews | — | 58.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 16 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fredrik Petersson](https://appshunter.io/developer/555276018) | [Maryana Yurieva](https://appshunter.io/developer/1559522500) |

## What reviewers say

### ZappID

[App page](https://appshunter.io/ios/app/zappid/id1455029820)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift Work Calendar

[App page](https://appshunter.io/ios/app/shift-work-calendar-scedu/id6478971643)

This app helps shift workers manage their schedules with customizable color-coding, icons, and break time tracking. It offers features like automatic rotation filling, memo notes, and detailed monthly reports for earnings and shift insights.

**Highlights:** Customizable shift color-coding and icons, Break time tracking within shifts, Automatic rotation filling, Daily memo notes, Monthly earnings and shift reports, iCloud syncing across devices, Flexible shift notifications

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scedu Pro Monthly Subscription | $6.99 | per month |
| Scedu Pro Annual Subscription | $29.99 | per year |


## Frequently asked questions

### Is ZappID free?

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

### Is Shift Work Calendar free?

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

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

Neither ZappID nor Shift Work Calendar shows ads.

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

ZappID ships an update every 4 days, and Shift Work Calendar every 3 weeks. Most recently, ZappID was updated on September 15, 2026 and Shift Work Calendar on September 23, 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.*