Kalender Jawa dan Weton Asli is a free android application developed by Smooth Home Production, designed for personalization purposes. This app provides a comprehensive calendar system that includes the Javanese and Islamic calendar along with the calculation of Weton, which is a Javanese astrology system that is used to determine personal and marriage compatibility.

The app includes other features such as a calculator based on ancient Javanese books and can be used offline. In addition, the app is small in size and does not consume a lot of RAM. Overall, Kalender Jawa dan Weton Asli is a useful app for individuals who want to keep track of important dates and events in the Javanese and Islamic calendar while also learning about Javanese astrology.