# シフトカレンダー vs ダブラクカレンダー

The clearest difference is in-app purchases: シフトカレンダー at none against ダブラクカレンダー's 1. ダブラクカレンダー's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ダブラクカレンダー sells 1 one-off in-app purchase. 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, ダブラクカレンダー every 2 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | シフトカレンダー | ダブラクカレンダー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 7 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Saigen inc.](https://appshunter.io/developer/1153379682) | [AKITO YAMAZAKI](https://appshunter.io/developer/1879795929) |

## 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


### ダブラクカレンダー

[App page](https://appshunter.io/ios/app/id6802880849)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ダブラクカレンダー Pro | $1.99 | one-time |


## 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 ダブラクカレンダー free?

ダブラクカレンダー is free to download, with in-app purchases available.

### Do シフトカレンダー or ダブラクカレンダー have ads?

Both シフトカレンダー and ダブラクカレンダー show ads.

### Which is updated more often, シフトカレンダー or ダブラクカレンダー?

シフトカレンダー ships an update every 3 months, and ダブラクカレンダー every 2 weeks. Most recently, シフトカレンダー was updated on November 6, 2026 and ダブラクカレンダー on November 6, 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.*