CalendarDuo is made and published by Chun Lam. AppBrain is an independent app data site and isn't affiliated with Chun Lam. The app name, icon, screenshots and description belong to Chun Lam and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- May 28, 2026
- Size
- 40.6 MB
User feedback
Ratings and reviews on the App StoreComments on CalendarDuo for iOS
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Store listing
By Chun Lam, from the App Store
Description by Chun Lam Written by the developer, not by AppBrain. Click to read.
CalendarDuo allows users to switch between two calendars at their fingertips!
CalendarDuo is the best tool for:
- Frequent flyer between two countries/regions
- Organizing events with family members or relatives overseas
- Scheduling meetings and tasks with colleagues overseas
- Planning trips to another country/region
- ANYONE who needs a simple calendar!
Top features
- Switching between TWO world calendars INSTANTLY
- Duo-view displaying ONE calendar with holidays of TWO countries/regions
- User interface with multiple language selection
- Daylight Saving Time (DST) dates
- Currency exchange rate (for currencies available in Europe Central Bank)
- World clock
- Adding notes
CalendarDuo is the simplest calendar you’ll ever need!
NEW! 2026 holidays are available now!
- public holidays
- bank holidays
- statutory holidays
- regional holidays
- provincial holidays
- special days
NEW! 2022 World Calendars (more are coming!):
- Australia
- Canada
- China (PRC)
- France
- Germany
- Hong Kong
- India (Maharashtra, New Delhi)
- Indonesia
- Italy
- Japan
- Macau
- Malaysia
- Philippines
- Portugal
- Singapore
- South Korea
- Taiwan
- Thailand
- United Kingdom
- United States
- Vatican City
Holiday information is gathered from government official releases. Source details can be found on each Holiday List.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 40.6 MB
- Content rating
- Everyone
Technologies used by CalendarDuo
Releases
Updates seen on the App Store- Version
- 1.3.1
- Launched
- November 2021
No changelog data
Alternatives
Similar apps and more from Chun Lam
Rankings
App Store top chartsApp Store Rankings for CalendarDuo
About the app and developer
About CalendarDuo
CalendarDuo is an utilities app developed by Chun Lam.
What is the rating of CalendarDuo?
CalendarDuo has no ratings yet.
Is CalendarDuo free?
CalendarDuo is free. The app size is 40.58 MB. The latest version available is 1.3.1. The last update was on May 28, 2026.
What are the requirements for CalendarDuo?
The app has a content rating of Everyone. The app has been available on the App Store since November 2021.
Developer information for Chun Lam
Address:
Frequently asked questions about CalendarDuo
Is CalendarDuo free?
Yes. CalendarDuo is free on the App Store.
Is CalendarDuo still available?
Yes. CalendarDuo is on the App Store, and the last update we saw was on May 28, 2026.
How large is CalendarDuo?
CalendarDuo is 40.58 MB.
Is CalendarDuo suitable for children?
App Store rates the content of CalendarDuo as suitable for everyone.
Who made CalendarDuo?
CalendarDuo was developed by Chun Lam. It is listed in the utilities category on the App Store.
What are the best alternatives to CalendarDuo?
People looking at CalendarDuo also look at these utilities apps: PP Holiday Calendar mini, qppstudio worldwide holidays, 【みんなのカレンダー】 Japan Calendar 祝日, Paws Almanac, Thailand Holiday Year Calendar.