Lịch Việt (Âm-Dương Lịch) is a free Android app developed by 123GoVn that provides a comprehensive lunar calendar for Vietnam. The app offers features such as investigating good and bad days, Exodus, weddings, and house-making. The app also supports an intuitive widget that allows users to access the calendar with ease. Users can view the calendar by month and the app also displays random quotes.

The app is straightforward and easy to use. The widget is a handy feature that provides quick access to the calendar. The app’s ability to display random quotes adds a nice touch to the user experience. Overall, Lịch Việt (Âm-Dương Lịch) is a useful app for anyone interested in lunar calendars and the Vietnamese culture.