# 교대달력 ShiftCalendar vs Koogle(쿠글)

The clearest difference is review sentiment: 교대달력 ShiftCalendar at 67% against Koogle(쿠글)'s 0%. 교대달력 ShiftCalendar also leads on update cadence (every 2 weeks vs every 2 months). Koogle(쿠글)'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

교대달력 ShiftCalendar ships an update every 2 weeks, Koogle(쿠글) every 2 months. The most recent releases landed on June 11, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 교대달력 ShiftCalendar | Koogle(쿠글) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/shiftcalendar/id1010170381/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 18 MB | 100 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Park Seung Yun](https://appshunter.io/developer/526364312) | [heeung moon](https://appshunter.io/developer/1502981718) |

## What reviewers say

### 교대달력 ShiftCalendar

[App page](https://appshunter.io/ios/app/shiftcalendar/id1010170381)

Manage your rotating work schedule with this calendar app. It allows for custom work types, displays lunar dates and holidays, and tracks accumulated overtime. Over 1000 companies are already registered.

**Highlights:** Customizable shift schedules, Lunar calendar and holidays, Overtime tracking, Company registration, Personalized work types

**Features:** macOS Compatibility

**In-app purchases:** none


### Koogle(쿠글)

[App page](https://appshunter.io/ios/app/koogle/id1502981719)

This app showcases featured products and services from client companies. It serves as a promotional platform for businesses associated with the developer. Access a curated selection of offerings from various partners.

**Highlights:** Showcase client products, Promote client services, Curated partner offerings, Business promotion platform

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

**In-app purchases:** none


## Frequently asked questions

### Is 교대달력 ShiftCalendar free?

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

### Is Koogle(쿠글) free?

Koogle(쿠글) is free to download, with no in-app purchases.

### Do 교대달력 ShiftCalendar or Koogle(쿠글) have ads?

교대달력 ShiftCalendar shows ads; Koogle(쿠글) does not.

### Which is updated more often, 교대달력 ShiftCalendar or Koogle(쿠글)?

교대달력 ShiftCalendar ships an update every 2 weeks, and Koogle(쿠글) every 2 months. Most recently, 교대달력 ShiftCalendar was updated on June 11, 2026 and Koogle(쿠글) on September 24, 2026.

---

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