mozaBook, developed by Mozaik Education, is a free education and reference app available for Android users. It is an all-in-one program that allows you to access your books and exercise books, open 3D scenes and extra content, and create and open worksheets in the Test editor.

With mozaBook, you can send worksheets from your desktop to students using the app on their tablets. They can solve the worksheets and send their solutions back to the teacher's mozaBook. It's important to note that the teacher's computer and the tablets must be connected to the same Wi-Fi network, and the app cannot be run on rooted devices due to copyright reasons.