중학수학light is an Android application developed by needto that provides web-based access to the contents of middle school math textbooks. The app covers the math curriculum for grades 7-9, and the contents are presented as images.

However, it is important to note that due to changes in the textbook contents in 2013, the content for grade 7 will be updated in the future. As the contents are in image format, the app may take some time to load, and depending on the user's data plan, additional charges may apply. Therefore, it is recommended to use wifi or an unlimited 3G data plan while using the app.