# シフトカレンダー vs Duty and Shift

The clearest difference is in-app purchases: シフトカレンダー at none against Duty and Shift's 2. Duty and Shift's advantage is ads (none vs shown) and update cadence (every 2 days vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Duty and Shift sells 2 in-app purchases, starting at $1.99 per month. シフトカレンダー asks for nothing beyond the download.

シフトカレンダー ships an update every 3 months, Duty and Shift every 2 days. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | シフトカレンダー | Duty and Shift |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 23 MB | 4 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Saigen inc.](https://appshunter.io/developer/1153379682) | [SINWOO KIM](https://appshunter.io/developer/6819970061) |

## What reviewers say

### シフトカレンダー

[App page](https://appshunter.io/ios/app/id1390373326)

Manage your work shifts with this stylish and user-friendly calendar app. Quickly input schedules, customize shift colors and names, and even save your calendar as an image to share with others. Ideal for nurses, caregivers, service industry workers, and part-time employees.

**Highlights:** Stylish calendar interface, Speedy shift input, Customizable shift colors and names, Save and share calendar as image, Event and feeling stamps, Calendar app integration

**Features:** Vision Pro support

**In-app purchases:** none


### Duty and Shift

[App page](https://appshunter.io/ios/app/duty-and-shift/id6823619979)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $11.99 | per year |


## Frequently asked questions

### Is シフトカレンダー free?

シフトカレンダー is free to download, with no in-app purchases.

### Is Duty and Shift free?

Duty and Shift is free to download, with in-app purchases available.

### Do シフトカレンダー or Duty and Shift have ads?

シフトカレンダー shows ads; Duty and Shift does not.

### Which is updated more often, シフトカレンダー or Duty and Shift?

シフトカレンダー ships an update every 3 months, and Duty and Shift every 2 days. Most recently, シフトカレンダー was updated on October 29, 2026 and Duty and Shift on November 1, 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.*