The 2020 calendar is a compact application that allows users to view lunar calendars to look up dates and times in traditional Vietnamese.
- The simplest, easy to use, consists of 2 parts day calendar and month calendar.
- Display exactly date details to replace paper calendar.
- Simple operation, left swipe right to move to the next day or month.
- Support hours, days.
- Show the holidays in the year.
- Collect some goods maxim of Vietnam and many countries in the world.

Some features are in development:
- Allows for adding a reminder event and notification when it arrives.
- Look up dates.
- Allow to update the device wallpaper.

Recent changes:
- Fix bugs and improvement performance