The Russian Language Test Prep app by BrainSoft Apps is an Android-based application designed to help students prepare for exams in Russian, school tests, CT, and USE. The app offers two modes of training, including Training and Courses, with over 15,000 questions compiled in accordance with the school curriculum. The app is completely free to use and has a user-friendly interface.

The Training mode allows users to select the chapters they want to train on and complete tasks on options and random questions. Users can also study theoretical material on each topic. The app offers 10 questions according to the chapters selected, including nominal parts of speech, verb and its forms, pronoun, adverb, service parts of speech, spelling, spelling morphemes, syntax, punctuation, phonetics, word formation, and vocabulary. Correct answers are highlighted in green, while wrong answers are highlighted in red. The app also provides help on each topic.

In the Courses mode, users can open a course that interests them and complete tasks only on it. The app allows users to refresh their knowledge quickly and helps them analyze their mistakes to work on their weaknesses. Overall, the Russian Language Test Prep app is an excellent tool for students to prepare for Russian exams and improve their grammar skills.