សវភវទយសសតរ ថនកទ៤ is an educational and reference app available on the Android platform. Developed by LENGPANHA, this app provides a comprehensive collection of textbooks and reference books for students.

With this app, students can access free educational materials for their studies. The textbooks cover various subjects and are aligned with the curriculum for Grade 4. The content is organized in an easy-to-navigate manner, making it convenient for students to find the information they need.

The app also includes interactive features and study tools to enhance the learning experience. Students can use the app to practice exercises, take quizzes, and track their progress. The materials are designed to support both self-study and classroom learning.

Overall, សវភវទយសសតរ ថនកទ៤ is a valuable resource for Grade 4 students, providing them with access to a wide range of educational materials to support their learning journey.