Varsity Learning Tools offer 22 completely free iPad and iPhone apps for students in grades 9-12, as well as a web and mobile site, which allow students to access 50,000 professionally written assessment questions on the go across 100+ subjects. Students take several million problems per month on the Varsity platform.
The site has practice tests and flashcards for ACCUPLACER, ACT, ACT Compass, AP, ASVAB, CLEP, Computer Science, GED, GMAT, GRE, High School Subjects, HSPT, ISEE, LSAT, Math, MCAT, Medical and Nursing, PSAT, SAT, SAT Subject Tests, Science, and SSAT.
The Varsity Learning system enables teachers and students to assess performance and track academic progress over time. Users have access to robust analytics that include individual question analysis and explanation, percentile rankings, score vs. time distribution, and recorded time spent per question.
In addition to the above learning tools, the Varsity Blog features Admissions Advice, College Experience Interviews, and other articles.
http://www.varsitytutors.com/practice-tests | www.varsitytutors.com/blog