Google Classroom is a free web service developed by Google for schools that aims to simplify creating, distributing, and grading assignments. The primary purpose of Google Classroom is to streamline the process of sharing files between teachers and students.Is Google classroom free for all? The Classroom app is available for Android, Chrome, and iOS devices. For more information, see Get the Classroom app. What does Classroom cost? Classroom is free for all users.Where is the class code for Google classroom? You can find your Google Classroom code on your course's class card on the website or mobile app. Google Classroom codes allow students to find and join a class. Codes are shared by class instructors with students and cannot be changed.Can students see each other's work in Google Classroom? As the teacher, locate your assignment folder in GDrive. Right click and open sharing options. Choose OFF, then SAVE. This way, my students can only see their own work and no one else's.