# Red Calendar 2026 vs 공수계산기

The clearest difference is review sentiment: Red Calendar 2026 at 92% against 공수계산기's 47%. 공수계산기's advantage is in-app purchases (none vs 2) and iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Red Calendar 2026 sells 2 in-app purchases, starting at $1.99 per month. 공수계산기 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Red Calendar 2026 | 공수계산기 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (670 ratings)](https://appshunter.io/ios/app/red-calendar-2026/id1489018103/reviews)** | — |
| Number of ratings | **670** | — |
| Positive reviews | **92.3% of reviews** | 47.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 91 MB | 55 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [jaesung Lee](https://appshunter.io/developer/906348091) | [YONGGUN KWON](https://appshunter.io/developer/1736061970) |

## What reviewers say

### Red Calendar 2026

[App page](https://appshunter.io/ios/app/red-calendar-2026/id1489018103)

This app simplifies event logging with quick taps for simple entries and long presses for more options. It highlights public holidays and recurring events, offers customization like background images, and supports dark mode and widgets.

**Highlights:** Quick event registration, Recurring event saving, Annual calendar view for holidays, Customizable background images, Dark mode and widgets support, International holiday calendars

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $1.99 | per month |
| Yearly Pro Subscription | $9.99 | per year |


### 공수계산기

[App page](https://appshunter.io/ios/app/id6479498172)

This app helps daily laborers record and manage their daily work hours and wages. It simplifies tracking income and expenses for manual labor jobs.

**Highlights:** Daily work hour recording, Wage calculation, Income and expense management, Laborer-focused tool

**In-app purchases:** none


## Frequently asked questions

### Is Red Calendar 2026 free?

Red Calendar 2026 is free to download, with in-app purchases available.

### Is 공수계산기 free?

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

### Do Red Calendar 2026 or 공수계산기 have ads?

Both Red Calendar 2026 and 공수계산기 show ads.

### Which is updated more often, Red Calendar 2026 or 공수계산기?

Red Calendar 2026 ships an update every 2 weeks, and 공수계산기 every 2 weeks. Most recently, Red Calendar 2026 was updated on November 7, 2026 and 공수계산기 on November 4, 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.*