Theriyuma? தெரியுமா? is an Android educational application developed by Karthikeyan Nila. The app aims to improve general knowledge by providing a collection of unknown and amazing facts in the Tamil language. The app offers a simple search feature to find a fact and allows users to browse facts by category. Additionally, users can change themes and share facts using Facebook, WhatsApp, G mail, Google+, Twitter, SMS, and more.

The app's interface is user-friendly and intuitive, making it easy to navigate and find information. The app provides a wealth of knowledge, and the facts are well researched and accurate. The collection of facts is extensive, covering a wide range of topics, including history, science, and geography. Overall, Theriyuma? தெரியுமா? is an excellent educational app for Tamil speakers looking to expand their general knowledge.