Kalender 2021JawaIndonesia is an Android app developed by Next_Dev93. As the name suggests, this app is a calendar for the year 2021 that includes both the Javanese and Indonesian calendars. In addition to providing a comprehensive calendar, the app also allows users to search for their weton (Javanese birthdate) and find auspicious days.

The app is equipped with a complete primbon (Javanese almanac) that includes information about auspicious days, weton, netu days, and more. The user interface is easy to navigate, and the app is free to use.

Users are encouraged to leave feedback in the app to help the developers improve it further. Overall, Kalender 2021JawaIndonesia is a useful app for those interested in Javanese and Indonesian calendars and astrology.