PrepOnline: सरकर नकर is an Android application that is designed to help individuals prepare for the REET/ RTAT (Rajasthan Teacher) exams. The app is free to use and is created by Altis Vortex. The program offers a variety of features, including video lectures, exam-oriented notes, question banks, and test series. The app provides everything an individual needs to score well in the exams.

The video lectures are crafted by experienced faculties and are available in both live and recorded formats. The exam-oriented notes keep individuals updated with everything important from an exam point of view. The question banks contain questions that are highly likely to be repeated in the exams. The test series includes regular mock tests and test series, which assist aspirants in tracking their progress and locating their doubts. The app's concise learning method provides brief methods of learning that are enough to complete the course in a short period of time.

PrepOnline's aim is to provide free education to all individuals regardless of their age, class, or gender. The app's budget learning courses and concise learning methods are designed to achieve this goal.