CalendarDuo vs UNI Express
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalendarDuo
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.
- Switch between two world calendars instantly
- Duo-view with holidays from two countries
- Daylight Saving Time dates
- Currency exchange rate
- World clock
- Add notes
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** This app does not access your Contact List or Calendar. ** 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.
UNI Express
This app offers a one-stop consolidation and express delivery service from mainland China and Hong Kong to the UK. It features a professional shipping team, online customer service, and aims for punctual, safe, and fast delivery.
- Consolidation service
- Express delivery
- Mainland China to UK shipping
- Hong Kong to UK shipping
- Online customer service
- Professional transport team
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UNI Express 提供一站式內地及香港至英國的集運及速遞服務，專業運輸團隊，在線客戶服務，準時安全快捷。
Screenshots
Verdict
The clearest difference is ads: UNI Express at none against CalendarDuo's shown. UNI Express also leads on update cadence (every 6 days vs every 4 months) and monetization model (free vs ad-supported). On price, review sentiment, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CalendarDuo ships an update every 4 months, UNI Express every 6 days. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.
| Parameter | CalendarDuo | UNI Express |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| Update frequency | Every 4 months | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Chun Lam | KA NAM CHAN |
Customer experience
CalendarDuo
UNI Express
In-app purchases
CalendarDuo
No in-app purchases
UNI Express
No in-app purchases
Questions
Is CalendarDuo free?
Is UNI Express free?
Do CalendarDuo or UNI Express have ads?
Which is updated more often, CalendarDuo or UNI Express?
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