# シフトカレンダー vs Pカレンダー (パーフェクトカレンダー)

The clearest difference is in-app purchases: シフトカレンダー at none against Pカレンダー (パーフェクトカレンダー)'s 1. Pカレンダー (パーフェクトカレンダー)'s advantage is update cadence (weekly vs every 3 months) and iOS requirement (14.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Pカレンダー (パーフェクトカレンダー) sells 1 in-app purchase, starting at $0.49 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, Pカレンダー (パーフェクトカレンダー) weekly. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | シフトカレンダー | Pカレンダー (パーフェクトカレンダー) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 23 MB | 36 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saigen inc.](https://appshunter.io/developer/1153379682) | [takanori yanada](https://appshunter.io/developer/680652783) |

## 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


### Pカレンダー (パーフェクトカレンダー)

[App page](https://appshunter.io/ios/app/p/id6446070801)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プロプラン | $0.49 | per month |


## 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 Pカレンダー (パーフェクトカレンダー) free?

Pカレンダー (パーフェクトカレンダー) is free to download, with in-app purchases available.

### Do シフトカレンダー or Pカレンダー (パーフェクトカレンダー) have ads?

Both シフトカレンダー and Pカレンダー (パーフェクトカレンダー) show ads.

### Which is updated more often, シフトカレンダー or Pカレンダー (パーフェクトカレンダー)?

シフトカレンダー ships an update every 3 months, and Pカレンダー (パーフェクトカレンダー) weekly. Most recently, シフトカレンダー was updated on September 24, 2026 and Pカレンダー (パーフェクトカレンダー) on September 9, 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.*