Main functions in PRO version:
1) See the easy-to-see lunar calendar in google calendar style. The icon can be changed by date (except for some phones)
2) ★ Option to sync with google account, ... (Using caldav should not require network connection permission, just ask to request read / write permission) or export / import calendar from .ícs file (Will ask requires access to memory card)
3) ★ Create events to repeat every week / month / year according to the lunar calendar. You can create anniversary, clan ceremony, vegetarian day, anniversary date according to * CALENDAR * or * CALENDAR *, ...
Note that if the event is the 30th of the month then if the next month has only 29 days, the event will be carried over to the 29th of the following month. If you have 29 days at the end of the month, you will return to the 30th. Same for repeating by year.
4) Support Perpetual Calendar such as: Good / bad day, star, day's duty, tasks to do and abstain from the day, Departure direction, age around to avoid departure date
5) Support to select calendars to display in the interfaces
6) Support widget by month calendar, date calendar with basic info and upcoming events
7) Support for creating events with many different categories.
8) Option to show / hide past events.

Improvements in Ver3.1.0,3.2.0
1) Added support for changing icons according to date and day for popular launchers.
2) Added function to change icon by CALENDAR date (only support for Launcher3-Pixel2.1 edited by IIOT Dev)
3) Improved views of Weekly and Monthly Calendar with week number.
4) Remove icon widget because live icon already exists
5) Added option to announce 1st, full moon and Vietnamese holidays
6) Improved display interface for the tablet.

Thanks:
1) Lunar Algorithm of Ho Ngoc Duc
2) Simple mobile tools example

Tag: Lunar Calendar, Van Events, Van Nien Calendar, Lunar Events, Events, material, material design, Good and bad days, beautiful days.