# 가스앱 vs 교대달력 ShiftCalendar

The clearest difference is ratings volume: 가스앱 at 770 against 교대달력 ShiftCalendar's 5. 가스앱 also leads on review sentiment (84% vs 67%) and rating (4.8 vs 4.6). 교대달력 ShiftCalendar's advantage is monetization model (ad-supported vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

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

가스앱 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: 가스앱 has 770 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 84% of 가스앱's written reviews are positive against 67% of 교대달력 ShiftCalendar's.

가스앱 ships an update every 3 weeks, 교대달력 ShiftCalendar every 2 weeks. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 가스앱 | 교대달력 ShiftCalendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (770 ratings)](https://appshunter.io/ios/app/id741949011/reviews)** | [4.6 (5 ratings)](https://appshunter.io/ios/app/shiftcalendar/id1010170381/reviews) |
| Number of ratings | **770** | 5 |
| Positive reviews | **84.4% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 150 MB | 18 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SCG Lab](https://appshunter.io/developer/920706027) | [Park Seung Yun](https://appshunter.io/developer/526364312) |

## What reviewers say

### 가스앱

[App page](https://appshunter.io/ios/app/id741949011)

Manage your city gas services, check bills, and make payments all in one place. Earn cash rewards for various activities, which can be used to discount your gas bills or withdrawn. The app also offers real-time electricity bill checks and allows for easy booking of service appointments.

**Highlights:** Bill inquiry and payment, Cash rewards and discounts, Real-time electricity bill check, Mobile self-meter reading, Non-face-to-face service booking, 24-hour consultation chat, Boiler purchase and AI recommendation

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 가스앱 free?

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

### Is 교대달력 ShiftCalendar free?

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

### Which has better reviews, 가스앱 or 교대달력 ShiftCalendar?

가스앱 is rated higher. 가스앱 averages 4.8 out of 5 from 770 ratings, while 교대달력 ShiftCalendar averages 4.6 from 5 ratings.

### Do 가스앱 or 교대달력 ShiftCalendar have ads?

Both 가스앱 and 교대달력 ShiftCalendar show ads.

### Which is updated more often, 가스앱 or 교대달력 ShiftCalendar?

가스앱 ships an update every 3 weeks, and 교대달력 ShiftCalendar every 2 weeks. Most recently, 가스앱 was updated on October 23, 2026 and 교대달력 ShiftCalendar on October 20, 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.*