Buku SKI MTs KelasEdisi is a free educational application developed by 99 Disk Lab for Android devices. It is designed to provide a comprehensive guide to Islamic education for junior high school students. The app is divided into three sections, each dedicated to a particular grade level: 7, 8, and 9.

This application is a great resource for students who want to deepen their knowledge of Islam and its teachings. It covers a wide range of topics, including Islamic faith, history, and culture, as well as practical guidance on how to perform religious rituals and observances. The app is based on the latest curriculum guidelines set by the Indonesian Ministry of Education, ensuring that students receive accurate and up-to-date information. The app is easy to navigate, with clear and concise explanations of all topics covered.