About CollegePrepRoom

CollegePrepRoom is a study site from CollegePrepRoom Publication Series for the digital SAT, the ACT, and five AP exams. Each course offers lessons, worked examples, a study guide, and practice online. Free practice questions are open to anyone without an account.

What we believe about test prep

Many points are lost in the choice between two plausible answers. For that reason, each question here comes with an explanation of why the right answer is right and why each wrong answer is wrong, and each lesson teaches the reasoning behind its method.

What is free and what is paid

Free practice questions in all subjects stay free. A subscription to a subject, $3.99 a month, unlocks its full course: all lessons, the complete study guide online, all course questions, and the full-length practice tests.

Our commitment and its limits

We provide accurate questions, clear explanations, and lessons built on sound study methods, and we correct mistakes when we find them. We do not promise a score. Results depend on each student's own preparation and on the test itself, so no score, score increase, or admission outcome is guaranteed. See our disclaimer.

How our content is made

Read our editorial policy for how questions are written, checked, and corrected.

SAT® and AP® are trademarks registered by the College Board. ACT® is a registered trademark of ACT, Inc. Neither organization was involved in the production of, or endorses, CollegePrepRoom.