Namma Kalvi Study Materials is a free Android app developed by Our World Tech that caters to the learning needs of Tamil Nadu State Board students. The app offers a comprehensive collection of study materials, textbooks, notes, question banks, and previous year's question papers for students from 1st to 12th standard. It covers all the subjects prescribed by the Samacheer Kalvi curriculum.

The app provides access to a wide range of resources, including model question papers, unit test question papers, revision exam question papers, and slip test question papers, which help students to prepare for their exams effectively. The app is user-friendly and available in both Tamil and English languages, making it easy for students to use and understand. Moreover, all the resources are available for free, making it an excellent learning companion for students who cannot afford expensive study materials.