Тест по русскому языку is an Android application developed by Pioneer Development that allows users to test their Russian language skills. The app offers 50 questions, and users are allowed to make up to 5 mistakes. With over 1300 questions, users can take the test multiple times to improve their language proficiency. The app also features a "Records" section where users can track their progress.

The interface of the app is simple and user-friendly, making it easy to navigate. The questions are well-structured and cover a range of topics, including grammar, vocabulary, and comprehension. The app is free to download and use, making it accessible to anyone who wants to learn or improve their Russian language skills.

Overall, Тест по русскому языку is an excellent app for those who want to test their Russian language proficiency. With a vast collection of questions and a user-friendly interface, this app is a must-try for anyone looking to improve their language skills.