Kalender Jawa Hijriah 2020 is a free Android app developed by zoel009. This app is a comprehensive Islamic calendar that includes both the Islamic and Javanese calendars. It also features a list of national holidays in Indonesia. The app boasts of a visually appealing background that includes beautiful mosques from around the world, mosques from Indonesia, and stunning calligraphy art.

The app's interface is easy to navigate, and the calendar is well-organized, making it easy to find important dates and events. The Islamic calendar is based on the lunar cycle, and the app provides accurate dates for Islamic events such as Ramadan, Eid al-Fitr, and Eid al-Adha.

One of the standout features of this app is the option to choose from various backgrounds. Users can choose from beautiful mosques from around the world or Indonesia, or opt for stunning calligraphy art. The app is a great tool for those who want to keep track of important Islamic dates and events while also appreciating the beauty of Islamic art.