Piyush Sir Reasoning Class Notes, written by Rahul Kumar, is an Android app that offers a comprehensive study guide for various competitive exams such as SSC, Banking, and Railway. The app features both Hindi and English languages, making it easily accessible to a wider audience.

The app provides detailed explanations and covers all types of questions, including verbal and non-verbal reasoning. It also offers a mock test series based on the latest previous year questions of the SSC exam. With over 1,000 questions discussed with a full explanation in both languages, the app is an excellent resource for anyone preparing for competitive exams.

In addition, the app has a user-friendly interface, making it easy to navigate. It also offers a download PDF option to print and download notes for further study. The app is free to use and is an excellent resource for anyone preparing for competitive exams.