# Emvron vs 내근무(DiaCalendar2)

The clearest difference is in-app purchases: 내근무(DiaCalendar2) at none against Emvron's 3. 내근무(DiaCalendar2) also leads on device support (3 vs 1). Emvron's advantage is iOS requirement (18.6 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Emvron sells 3 in-app purchases, starting at $2.99 per month. 내근무(DiaCalendar2) asks for nothing beyond the download.

Emvron ships an update every 5 days, 내근무(DiaCalendar2) every 3 days. The most recent releases landed on October 28, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Emvron | 내근무(DiaCalendar2) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 42 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Jaehoon Lee](https://appshunter.io/developer/1889076539) | [guija nam](https://appshunter.io/developer/1756044162) |

## What reviewers say

### Emvron

[App page](https://appshunter.io/ios/app/emvron-shift-schedule-and-pay/id6765544703)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Emvron Pro Monthly | $2.99 | per month |
| Emvron Pro Yearly | $9.99 | per year |
| Emvron Pro Lifetime | $24.99 | one-time |


### 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 Emvron free?

Emvron is free to download, with in-app purchases available.

### Is 내근무(DiaCalendar2) free?

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

### Do Emvron or 내근무(DiaCalendar2) have ads?

Neither Emvron nor 내근무(DiaCalendar2) shows ads.

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

Emvron ships an update every 5 days, and 내근무(DiaCalendar2) every 3 days. Most recently, Emvron was updated on October 28, 2026 and 내근무(DiaCalendar2) on November 7, 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.*