Doa Rosari Katolik is a free Android app developed by LadyBoss Inc. It falls under the Education & Reference category and is specifically designed for Catholics who wish to pray the Rosary. The Rosary is a devotional prayer to the Virgin Mary that consists of a series of prayers and meditations on the life of Jesus Christ according to the Gospels.

The app provides step-by-step guidance on how to pray the Rosary, making it ideal for both beginners and experienced Catholics. The app does not require an internet connection and can be used offline. It features 59 beads, a cross, and a medal, each with a different prayer. The app is easy to use and is suitable for anyone who wishes to deepen their relationship with God through the intercession of the Virgin Mary.