# MY S vs 교대달력 ShiftCalendar

The clearest difference is rating: 교대달력 ShiftCalendar at 4.6 against MY S's 2.0. 교대달력 ShiftCalendar also leads on update cadence (every 2 weeks vs every 3 months). MY S's advantage is ads (none vs shown) and review sentiment (84% vs 67%). On price, ratings volume, in-app purchases and monetization model 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 holds the better App Store score, 4.6 against 2.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews complicate that: 84% of MY S's written reviews are positive against 67% of 교대달력 ShiftCalendar's, so the app with the better star average is not the one people write more warmly about.

MY S ships an update every 3 months, 교대달력 ShiftCalendar every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MY S | 교대달력 ShiftCalendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/my-s-oil/id463703083/reviews) | **[4.6 (5 ratings)](https://appshunter.io/ios/app/shiftcalendar/id1010170381/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | **83.9% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 24 MB | 18 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [S-OIL Corporation](https://appshunter.io/developer/463703086) | [Park Seung Yun](https://appshunter.io/developer/526364312) |

## What reviewers say

### MY S

[App page](https://appshunter.io/ios/app/my-s-oil/id463703083)

Manage your loyalty card, find nearby gas stations, and track your points and spending. Easily register mobile gift certificates and view membership benefits. Enjoy convenient features like electronic receipts and quick refueling options.

**Highlights:** Digital loyalty card with barcode, Find nearby gas stations with navigation, Favorite gas station management, Electronic receipt tracking, Mobile gift certificate registration, Membership tier benefits, Quick refueling service

**Features:** macOS Compatibility, 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 MY S free?

MY S 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, MY S or 교대달력 ShiftCalendar?

교대달력 ShiftCalendar is rated higher. MY S averages 2.0 out of 5 from 4 ratings, while 교대달력 ShiftCalendar averages 4.6 from 5 ratings.

### Do MY S or 교대달력 ShiftCalendar have ads?

교대달력 ShiftCalendar shows ads; MY S does not.

### Which is updated more often, MY S or 교대달력 ShiftCalendar?

MY S ships an update every 3 months, and 교대달력 ShiftCalendar every 2 weeks. Most recently, MY S was updated on October 30, 2026 and 교대달력 ShiftCalendar on October 24, 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.*