About PrepSim

PrepSim is a free, independent practice platform created by Attinder Dhillon for his daughter, Ayna, while she prepares for competitive entrance tests.

Why it exists

The aim is simple: make realistic timed practice easier to access, with clear scoring, review tools and explanations in one place. There is currently no payment, subscription or trial limit.

How the question bank is built

The bank combines material compiled from publicly available sources with AI-generated questions and explanations. Public availability does not by itself remove another person's copyright. If you own material that appears here, or find an inaccurate question, please use the in-app report control or the contact page. Reports are reviewed and material may be corrected or removed.

Important limits

PrepSim is not an exam authority and is not affiliated with NTA, UPSC, UGC or any other examining body. AI-generated material can contain mistakes, and official patterns can change. Always verify eligibility, syllabus, dates and rules with the relevant official source.