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Screenshot of an online AP Biology practice test interface with the heading "AP Biology" and options like Practice, Skills, Results, Study plan. The selected practice set is titled "Unit 3 Practice Set" with a question number 5 of 20, and a timer showing 18:42 left. There are buttons labeled "Resume," "Start," and "Browse," along with descriptions of practice modes, such as full-length tests and unit practice sets.

Tons of Content (All AP Exams)

All AP Exams covered

A virtual biology practice set on a tablet screen titled 'AP Biology · Unit 3 Practice Set'. The practice set shows a passage about a student investigating how pH affects catalase, an enzyme in liver tissue, with a data table listing oxygen collected at different pH values. To the right, there is a multiple-choice question about the lower rate of oxygen production at pH 4, with options A through E. The bottom of the screen displays the student's name, Alex Rivera, and navigation buttons for 'Back' and 'Next' questions.

Faithful to the Actual Exam

Thousands of Practice Questions

Screenshot of an online homework review page titled 'Check Your Work' for AP Biology Unit 3 Practice Set, showing questions numbered 1 to 20 with some answers marked as current, unanswered, or for review. The page includes navigation buttons 'Back,' 'Check Your Work,' and 'Submit,' with the name 'Alex Rivera' at the bottom.

Tons of Content

Score Reports

Score reports and Insights inform a tailored strategy that addresses defined goals.

What’s Included:

Pick your AP® exam from all 42 courses and practice the way test day works. Take full-length practice exams or quick practice sets, then use your results to decide what to study next.

  • 14,000+ original practice questions, including 640+ free-response prompts

  • 228 full-length practice exams with check-in, timed sections, a 10-minute break, and a built-in calculator where the real exam allows one

  • 420 quick practice sets, 10 questions each

  • Explanations for every question, plus score reports after each attempt

  • Missed-question practice to target what you got wrong

APrep is an independent practice tool, not affiliated with or endorsed by the College Board. AP® is a trademark registered by the College Board.

    • Discovery: see where you stand with a practice exam or set

    • Analysis: review results by section and every explanation

    • Strategy Design: turn missed questions into targeted practice

Students working on laptops and robots in a classroom setting.