# 香港人！月曆 HKer Calendar vs CalendarDuo

The clearest difference is in-app purchases: CalendarDuo at none against 香港人！月曆 HKer Calendar's 2. 香港人！月曆 HKer Calendar's advantage is review sentiment (67% vs 50%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 香港人！月曆 HKer Calendar sells 2 in-app purchases, starting at $1.49 per 6 months. CalendarDuo asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 13, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | 香港人！月曆 HKer Calendar | CalendarDuo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/hker-calendar/id1574351473/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 76 MB | 41 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oprayo Ltd](https://appshunter.io/developer/1843110945) | [Chun Lam](https://appshunter.io/developer/1565498900) |

## What reviewers say

### 香港人！月曆 HKer Calendar

[App page](https://appshunter.io/ios/app/hker-calendar/id1574351473)

A practical calendar app for Hong Kong users, featuring public holidays, lunar dates, solar terms, and leave planning. It also includes weather forecasts, news updates, and note-taking capabilities with search and export options.

**Highlights:** Hong Kong public holidays 2025/2026, Lunar calendar and solar terms, Leave planning guide, Add, search, and export notes (CSV), Year calendar view, Real-time weather and 9-day forecast, News updates

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6個月 升級版 | $1.49 | per 6 months |
| 1年 升級版 | $1.99 | per year |


### CalendarDuo

[App page](https://appshunter.io/ios/app/calendarduo/id1589593639)

Easily manage and view holidays from two different countries simultaneously. This utility app offers instant switching between calendars, a dual-view display, and helpful tools like a world clock and currency exchange.

**Highlights:** Switch between two world calendars instantly, Duo-view with holidays from two countries, Daylight Saving Time dates, Currency exchange rate, World clock, Add notes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 香港人！月曆 HKer Calendar free?

香港人！月曆 HKer Calendar is free to download, with in-app purchases available.

### Is CalendarDuo free?

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

### Do 香港人！月曆 HKer Calendar or CalendarDuo have ads?

Both 香港人！月曆 HKer Calendar and CalendarDuo show ads.

### Which is updated more often, 香港人！月曆 HKer Calendar or CalendarDuo?

香港人！月曆 HKer Calendar ships an update every 4 months, and CalendarDuo every 4 months. Most recently, 香港人！月曆 HKer Calendar was updated on September 13, 2026 and CalendarDuo on June 24, 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.*