USMLE Exam Prep is a free Android app developed by quizworld that focuses on providing students with a comprehensive preparation for the United States Medical Licensing Examination (USMLE). The app includes thousands of images, audio, and video materials that cover various fields, including Biochemistry & Genetics, Chest Radiology, Clinical Vignette, Medicine, Microbiology, Neurology, Neuroscience, Obstetrics and Gynecology, Pathology, Pediatrics, Physical Diagnosis, Surgery, Psychiatry, Pathophysiology, Clinical Vignettes, Chest Radiology, and Preventive Medicine.

In addition to this, the app also offers flashcards to help students improve their vocabulary and knowledge of medical terminology. The app is user-friendly, and the materials are well-organized, making it easy for students to navigate through them. Overall, the USMLE Exam Prep app is an excellent resource for students preparing for the USMLE exam, and it is highly recommended for anyone looking for a comprehensive and interactive way to prepare for the exam.