Bangla Calendar is an Android application developed by OrkoNet LLC under the Business & Productivity category. It is a free app that presents the Bengali calendar officially used in Bangladesh. The app covers dates from the year 1990 ADBD) to the next ten years. Users can view any Bengali or Gregorian month with Bangla dates in this app.

The app is based on the modified version of the traditional Bengali calendar system, and the dates displayed here won't exactly match with calendars still being used in West Bengal. Bangla Calendar is easy to use and provides an accurate and comprehensive calendar for Bengali users. The app is lightweight and runs smoothly on Android devices.

Overall, Bangla Calendar is a must-have app for Bengali users who need to keep track of important dates and events. It's a reliable and accurate source of information for anyone who follows the Bengali calendar system in Bangladesh.