Е-класс is a free Android app developed by Центр Электронного Тестирования. It falls under the Education & Reference category and is designed to help Russian students prepare for the ВПР, ОГЭ and ЕГЭ exams using printed КИМ study materials from leading publishers. The app features tests for all school subjects from grades 1 to 11, and all the questions are based on the current school curriculum and the requirements of the Federal State Educational Standards (ФГОС) using the most common textbooks.

Е-класс offers both thematic and final tests, and provides instant evaluation of results along with a demonstration of the mistakes made. The app is user-friendly and has a simple interface, which makes it easy for students to navigate and take tests. Overall, Е-класс is a comprehensive test preparation app that can help Russian students achieve their academic goals by providing them with a convenient and efficient way to prepare for important exams.