UWorld is the worldwide leader in online learning to prepare for high-stakes exams. Since 2003, UWorld has helped millions of undergraduate, graduate, and professional students prepare for their exams. At the core of UWorld's mission is an obsession with quality, so that students receive only the best in learning resources.

Whether students are preparing for the ACT®, SAT®, MCAT®, NCLEX®, USMLE®, ABIM®, or ABFM®, UWorld ensures success by using active learning methods. With challenging practice questions that mirror the real tests and unrivaled explanations, students can efficiently and effectively prepare for every topic on their exams.