OAR (Officer Aptitude Rating) test is a civil service exam conducted by military services like the Navy and Marine Corps to select the applicants who would be qualified to train as officers. Therefore, OAR test scores play a crucial role if you are looking for a career in the military. To help aspiring applicants, many institutes have started tutoring for the OAR test. This blog covers some of the best online tutors for OAR test preparation.