Odia Calendar 2019, developed by Appsoniac, is a free Android app that provides high-quality monthly images of the Odia calendar. The app allows users to view maasa, vaara, thithi, and nakshatra information for all days in the year 2019 in Odia. This app is designed to help Oriya people easily know the significant days of the Odia calendar, whether they live in or outside of Odisha (Orissa).

The app has a simple and easy-to-use interface. Users can select any month by swiping left or right, and the zoomable, colorful calendar displays the list of festivals and holidays in Odia of every month. Additionally, the app provides information on marriage and Brata dates in Odia. The app has a nice UI and is small in size, providing a better user experience.