# シフトカレンダー vs KAIGOO

The clearest difference is price: シフトカレンダー at Free against KAIGOO's $0.99. シフトカレンダー also leads on update cadence (every 3 months vs every 9 months). KAIGOO's advantage is ads (none vs shown) and iOS requirement (16.6 vs 18.0). On in-app purchases and device support there is nothing between them.

シフトカレンダー is free to download; KAIGOO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

シフトカレンダー ships an update every 3 months, KAIGOO every 9 months. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | シフトカレンダー | KAIGOO |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | — |
| Size | 23 MB | 8 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Saigen inc.](https://appshunter.io/developer/1153379682) | [CSP LABO, K.K.](https://appshunter.io/developer/1111285651) |

## 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


### KAIGOO

[App page](https://appshunter.io/ios/app/kaigoo/id1453020558)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 KAIGOO free?

KAIGOO costs $0.99, with no in-app purchases.

### Do シフトカレンダー or KAIGOO have ads?

シフトカレンダー shows ads; KAIGOO does not.

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

シフトカレンダー ships an update every 3 months, and KAIGOO every 9 months. Most recently, シフトカレンダー was updated on September 28, 2026 and KAIGOO on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*