RRB NTPC Railway Exam is a free Android app designed to help candidates prepare for the RRB NTPC Railway Recruitment Exams. The app is developed by Prexam and is available for free on the Google Play Store. This app provides scientifically designed tools to improve your performance and increase your confidence to face the actual exam. With this app, you can take time-based tests to practice on the go and test your knowledge.

The app covers four main subjects – General Knowledge, Arithmetic Ability, General Intelligence, and General Science. In the free version of the app, you get three tests free in "Take a Test" and a few free questions for three chapters for each subject in "Practice Qs." However, the premium version of the app, which costs Rs. 900, provides unlimited "Take a Test" and complete access to the question bank using "Practice Qs." This app does not require an internet connection, except for downloading, updating, or buying the premium version.