# 이건달력 vs Shift Box

The clearest difference is ads: 이건달력 at none against Shift Box's shown. 이건달력 also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

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

이건달력 ships an update weekly, Shift Box every 5 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 이건달력 | Shift Box |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Size | 19 MB | 32 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hwangro Lee](https://appshunter.io/developer/1792207219) | [myungkyu namkung](https://appshunter.io/developer/1860735476) |

## What reviewers say

### 이건달력

[App page](https://appshunter.io/ios/app/2026/id6741156795)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift Box

[App page](https://appshunter.io/ios/app/shift-box-shift-calendar/id6757806164)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 이건달력 free?

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

### Is Shift Box free?

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

### Do 이건달력 or Shift Box have ads?

Shift Box shows ads; 이건달력 does not.

### Which is updated more often, 이건달력 or Shift Box?

이건달력 ships an update weekly, and Shift Box every 5 days. Most recently, 이건달력 was updated on October 9, 2026 and Shift Box on October 10, 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.*