# Ulty vs 내근무(DiaCalendar2)

The clearest difference is update cadence: 내근무(DiaCalendar2) at every 2 days against Ulty's monthly. 내근무(DiaCalendar2) also leads on device support (3 vs 1). Ulty's advantage is iOS requirement (16.4 vs 26.0). On price, 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.

Ulty ships an update monthly, 내근무(DiaCalendar2) every 2 days. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Ulty | 내근무(DiaCalendar2) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 59 MB | 41 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Sanghun Kong](https://appshunter.io/developer/1860301137) | [guija nam](https://appshunter.io/developer/1756044162) |

## What reviewers say

### Ulty

[App page](https://appshunter.io/ios/app/ulty-shift-calendar/id6756371021)

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

**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 Ulty free?

Ulty 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 Ulty or 내근무(DiaCalendar2) have ads?

Neither Ulty nor 내근무(DiaCalendar2) shows ads.

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

Ulty ships an update monthly, and 내근무(DiaCalendar2) every 2 days. Most recently, Ulty was updated on October 25, 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.*