Osu Arana is a free Android application developed by Madhusanka that falls under the Education & Reference category. It provides an in-depth guide to the history of Sri Lanka, covering significant events from ancient times to the present day. The app is well-organized, with information split into different eras, making it easy to navigate.

The app is packed with features such as timelines, maps, and galleries, providing a comprehensive learning experience. Users can explore the island's ancient kingdoms, colonial period, and post-independence history through engaging and informative content. The app also includes quizzes to test knowledge and reinforce learning. Overall, Osu Arana is a great tool for anyone interested in Sri Lankan history.