# Shift Box vs 내근무(DiaCalendar2)

The clearest difference is ads: 내근무(DiaCalendar2) at none against Shift Box's shown. 내근무(DiaCalendar2) also leads on update cadence (every 2 days vs every 5 days). Shift Box's advantage is iOS requirement (17.6 vs 26.0). On price, 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.

Shift Box ships an update every 5 days, 내근무(DiaCalendar2) every 2 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Shift Box | 내근무(DiaCalendar2) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 41 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [myungkyu namkung](https://appshunter.io/developer/1860735476) | [guija nam](https://appshunter.io/developer/1756044162) |

## What reviewers say

### Shift Box

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 내근무(DiaCalendar2)

[App page](https://appshunter.io/ios/app/diacalendar2/id6768628885)

A calendar app designed for shift workers and those with rotating work schedules. It allows users to select their work location and current shift to view their work schedule. Users can also add daily schedules and notes that will be displayed on the calendar.

**Highlights:** Shift work calendar, Rotating schedule display, Add daily schedules, Add notes to dates, View work location and shift

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Shift Box free?

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

### Is 내근무(DiaCalendar2) free?

내근무(DiaCalendar2) is free to download, with no in-app purchases.

### Do Shift Box or 내근무(DiaCalendar2) have ads?

Shift Box shows ads; 내근무(DiaCalendar2) does not.

### Which is updated more often, Shift Box or 내근무(DiaCalendar2)?

Shift Box ships an update every 5 days, and 내근무(DiaCalendar2) every 2 days. Most recently, Shift Box was updated on October 10, 2026 and 내근무(DiaCalendar2) on October 8, 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.*