Two answers sound right. One is a trap.
Red Pen Prep is MCAT practice that shows its work: for every answer, the sentence, the table cell or the principle that decides it, and the name of the trap behind every wrong choice.
A real Chem/Phys question from the free sample: the tempting answer, the trap's name, the evidence.
- The question, and seven seconds to pick.
- A, the tempting answer. Its trap: Direction reversed.
- The evidence: the table rows that settle it.
- Every choice explained, each trap named.
Recorded in the course at phone size. Voice: AI-generated. This passage is free: open it →
- CARS course: 100 passages, 599 questions, one timed section
- Bio/Biochem: 24 data passages and 12 question sets, 180 questions
- Chem/Phys: 24 data passages and 12 question sets, 180 questions
- Psych/Soc: 24 data passages and 12 question sets, 180 questions
- Trap Bank: 155 traps across all four sections
- Study plan and red pen review: week by week to your test date, and every question you miss back after 1, 3 and 7 days
- More passages, on the same key as they open
Works in your browser on a phone or a laptop. Your license key arrives by email the moment you pay.
14-day full refund if it isn't helping you.
Pick A or B. Then watch the red pen.
One trap from each section of the MCAT. These four come from the Trap Bank, like many of the traps in our videos.
Ten traps are free in the Trap Bank. The Pass opens all 155.
Exactly what you get today.
| Part | Count |
|---|---|
| CARS course complete | |
| Practice passagesWorked one at a time, with the full correction after every question. | 91 |
| Timed section in the real format9 passages, 53 questions, 90 minutes, with flags, review and a walkthrough. | 1 |
| CARS questionsEach proved by the sentence that decides it, with every choice explained. | 599 |
| Transfer problemsTwo after each practice passage: one right away, one 48 hours later. | 182 |
| Named CARS traps"My traps" shows the ones that catch you, with the questions they caught you on. | 21 |
| Bio/Biochem growing | |
| Data passagesResearch passages, each with its table and five questions. The red pen marks the sentence, the cells or the principle. | 24 |
| Discrete question setsFive questions each, every one settled by a named principle. | 12 |
| Bio/Biochem questionsThe 24 passages and the 12 sets together. | 180 |
| Chem/Phys new | |
| Data passagesExperiments with their tables: titrations, cells, kinetics, spectroscopy, fluids, circuits, optics, sound. | 24 |
| Discrete question setsFive questions each, every one settled by a named principle. | 12 |
| Chem/Phys questionsThe 24 passages and the 12 sets together. | 180 |
| Psych/Soc new | |
| Data passagesStudies with their tables: reinforcement, memory, stress, helping, attribution, attitudes, health inequality, demographics, depression, sleep, correlation, prejudice. | 24 |
| Discrete question setsFive questions each, every one settled by a named principle. | 12 |
| Psych/Soc questionsThe 24 passages and the 12 sets together. | 180 |
| Trap Bank all 4 sections | |
| Two-choice trapsCARS 32 · Bio/Biochem 49 · Chem/Phys 34 · Psych/Soc 40. Short drills, separate from the course questions. | 155 |
| Study tools new | |
| My MCAT planYour test date and weekly hours in; every passage, set, the timed section and the Trap Bank rounds laid out week by week. | included |
| Red pen reviewEvery question you miss, in any section, back after 1, 3 and 7 days; three right in a row clears it. | included |
| In all | |
| Course questionsCARS 599 · Bio/Biochem 180 · Chem/Phys 180 · Psych/Soc 180. The 155 Trap Bank traps come on top. | 1,139 |
| Not in the Pass yet | |
| A complete MCAT courseNot yet. All four sections are in, and the science sections keep growing: more passages open on the same key as each one passes our checks. We don't promise dates. | — |
A plan for every week. Your misses, back in red.
Enter your test date and weekly hours: My MCAT plan lays out every passage, set and Trap Bank round week by week until then, and the red pen review brings back every question you miss after 1, 3 and 7 days.
Make your plan now. You can see the whole plan before you buy; the Pass opens the locked items.
Grade us first.
Everything below is free and complete, with the same correction the Pass gives you.
a correction, recorded on a phone ↑
How we check. Before a passage goes live, its questions are solved again, blind, by reviewers who never see the key, and every answer has to come out the same as the key. That is our own internal check.
We don't have student reviews yet. They'll appear here when we do.
Questions
14-day full refundIs this official AAMC material?
No. These are original passages and items written for Red Pen Prep, and the trap names are our teaching tool, not an official AAMC list. Use the official AAMC practice material too: it comes from the people who write the exam.
How do I get in after I pay?
Your license key arrives in your receipt email. Open the course, enter the key, and everything in the Pass opens. The key works on up to 3 devices or browsers at a time. Your progress is saved in the browser you work in.
What if it isn't helping me?
Give it a real try: a few passages, the prove-it step, the review of your misses. If within 14 days you decide it isn't helping you, write to our support address and you get a full refund. Once the refund is issued, your license key stops working.
Do new passages and modules cost extra?
No. New CARS passages and timed sections, and more Bio/Biochem, Chem/Phys and Psych/Soc passages, open on the same key as each one passes our checks. We don't promise dates.
How does the founder price work?
It's the same Pass with the same updates. One payment, not a subscription.