Many people narrow their choices down to either Kaplan’s or Princeton Review’s MCAT courses, as both companies have been around for more than 35 years. Their MCAT prep courses are refined and packed with features. The choice between these two depends on your specific needs and your learning style. Kaplan offers 15 full-length practice tests and over 10,000 practice questions. Princeton Review offers 11 MCAT books, and over 123 hours of instructor led classroom time (with their Ultimate Course package) which correlates closely with MCAT success. They also have a MCAT 510+ score guarantee course which can double your acceptance rate into U.S. Medical School. The Princeton Review goes above and beyond to make sure you pass, and that's why we recommend going with them over any other provider. You can see my full comparison of Kaplan and The Princeton Review MCAT here.