Not every SAT practice question comes from the same place. College Board says its Student Question Bank holds real questions created by the makers of the test. Khan Academy's official course is built with College Board. UWorld and ClassVal say their own instructors or team wrote their questions; OnePrep and PrepScholar describe their content as expert-written or newly developed. That difference changes how you should use each tool, and it is rarely stated up front.
Use official questions to learn what the real test feels like. Use well-built third-party questions for volume. Know which one you are doing.
How We Compared These
ClassVal publishes this article, so read it with that in mind. We compared each company's public pages as of October 2026: College Board's practice pages, the Khan Academy page on College Board's site, UWorld's SAT page, OnePrep's pricing page, PrepScholar's SAT page and ClassVal's own pages. We only report what a page says. Where a page did not say who writes the questions, we say we couldn't find it. Prices, counts and features change, so confirm on each company's site before you decide.
Why the Source of a Question Matters
A question's source affects three things you care about. The first is fit: whether the wording, difficulty and traps resemble the real Digital SAT. The second is trust: whether the answer key and explanation were written by the test's authors or by someone interpreting the test. The third is volume: how many fresh questions you can do before you start repeating.
Official questions are the closest match to the real test you can get for free. They are also finite, and you may already have seen many of them. Third-party banks can add volume and targeted practice, but a third-party bank reflects its publisher's reading of the test. None of that makes third-party practice bad. It means you should not treat a third-party score as an official one.
What Each Company Says About Its Questions
| Tool | Who it says wrote the questions | Count it states | Cost it states |
|---|---|---|---|
| College Board Student Question Bank | "Created by the makers of the actual tests" | "Thousands" (no exact number found) | Free |
| Official Digital SAT Prep on Khan Academy | Developed in partnership with College Board | No count found on the page we checked | Free |
| UWorld SAT | Its instructors ("Our instructors carefully craft every SAT multiple choice practice question") | 1,650+ to 1,700+ (its page gives both figures) | Question Bank from $99 (30-day) to $249 (360-day) |
| OnePrep | "Expert-written"; authors not named | 4,902 on Plus and Pro; "limited" on Free | Free plan; paid plans on its pricing page |
| PrepScholar | "Brand-new content" it developed; writers not named | 4,000+ and 4,700+ (its page gives both figures) | Complete Online SAT Prep listed at $397 |
| ClassVal | Written by ClassVal, built to the College Board blueprint | 4,500+ | Free: 35 questions/day. Premium: $5.99/month |
Two notes on that table. UWorld and PrepScholar each show two different counts on the pages we read, so we give the range instead of picking one. And for Khan Academy, the page we checked described the course and its explanations but gave no question total.
The Official Sources: Free and the Best Guide to Fit
College Board describes the Student Question Bank as thousands of real SAT and PSAT questions created by the makers of the tests, reachable through My Practice after you log in. Its practice page also lists a free full-length practice test in Bluebook. Khan Academy's Official Digital SAT Prep is free, and College Board's page says that after a Bluebook practice test you can open a walkthrough with an explanation of every question on that test.
If your goal is to see what real SAT questions look like, these come first. They cost nothing, and they come from the test makers. Our earlier guide, [Free Official SAT Prep vs. ClassVal](/blog/official-sat-prep-vs-classval-is-college-board-enough), covers where official practice leaves gaps, such as building a plan around your own misses.
The Third-Party Banks: Same Goal, Different Authors
UWorld, OnePrep, PrepScholar and ClassVal all publish their own questions. UWorld's page says its instructors craft each multiple choice question to look and feel like the real exam. OnePrep's pricing page lists an expert-written question bank but does not say who the experts are. PrepScholar's page describes its questions as brand-new content developed for the Digital SAT, and it also lists 8 official College Board practice tests taken in Bluebook as part of its program. ClassVal's questions are written for ClassVal and built to the College Board blueprint. They are not College Board questions, and College Board does not endorse ClassVal.
We also checked Magoosh's SAT page. We couldn't find who writes its questions or how many there are on that page, so we leave it out of the table instead of guessing.
The practical point: a third-party bank can be well made and still differ from the real test in small ways. Use it for repetition and skill targeting, and use official material to check yourself.
When Official Questions Run Out
Official practice is finite. If you have worked through the questions College Board and Khan Academy give you, repeating them can make you remember answers rather than practice the skill. This is the main reason students add a second source. A larger third-party bank gives you fresh questions on the same skill without memorized answers getting in the way.
ClassVal is built for this stage. Its free tier gives you 35 adaptive questions a day and one full-length test with no credit card. Premium is $5.99 a month. ClassVal's pages list 4,500+ Digital SAT questions, and OnePrep and PrepScholar state larger or comparable counts on their own pages. We are one option among several. ClassVal's approach is to use your misses to choose what to practice next; [see how the tools handle missed questions](/blog/how-sat-prep-tools-handle-your-missed-questions).
How to Mix Official and Third-Party Practice
- Start official. Take the free Bluebook practice test and read the Khan Academy walkthrough for every miss.
- Pick your weak skills. Use your results to choose two or three skills, not twenty.
- Add volume from one third-party source. Do short daily sets on those skills. Sticking with one bank keeps your review notes in one place.
- Check yourself officially. Every few weeks, take another official practice test or an official Question Bank set and compare.
- Treat scores as estimates. A third-party score is a signal about your habits, not a prediction from College Board.
| If you want to... | Start with |
|---|---|
| See what real questions look like | College Board Student Question Bank and Bluebook |
| Get a free explanation walkthrough of an official test | Official Digital SAT Prep on Khan Academy |
| Do more questions after official ones run out | A single third-party bank from the table above |
| Have practice chosen from your misses at a low monthly cost | ClassVal free tier, then Premium if you hit the daily cap |
FAQ: SAT Prep Question Sources
Are third-party SAT prep questions the same as real SAT questions?
No. Real SAT questions are created by the test makers at College Board. Third-party companies write their own questions in the style of the test. Their pages describe them as written by instructors or experts, not as College Board questions.
Are ClassVal questions official College Board questions?
No. ClassVal's questions are written for ClassVal and built to the College Board blueprint. College Board is not affiliated with ClassVal and does not endorse it. Use College Board's free materials to see real test questions.
Is the College Board Student Question Bank free?
College Board's practice pages describe its official practice resources as free, and the Question Bank is reached through My Practice after you log in with your College Board student account. Check College Board's site for current access details.
Should I only use official questions?
Official questions are the best guide to the real test, and they are free, so start there. If you finish them and want more repetition on a weak skill, a third-party bank can help. Keep checking yourself against official material.
How many practice questions do I need?
It depends on your starting point and time, so there is no number we can promise. What matters more is reviewing every miss. Our guide on how to use the SAT question bank shows how.
Your next step
Sources to verify these details
- College Board: Practice and PreparationOfficial hub for the Student Question Bank and Bluebook practice.
- College Board: Official SAT Prep on Khan AcademyHow the free Khan Academy course connects to Bluebook tests.
- UWorld SATUWorld's own description of its questions and prices.
- OnePrep pricingPlan contents and question counts.
- PrepScholar SATProgram contents, counts and prices.
Related ClassVal guides
- Free Official SAT Prep vs. ClassValWhere official practice stops.
- How to Use the SAT Question BankGet more from official questions.
- Free Full-Length SAT Practice Tests ComparedWhere to take full tests for free.
- How SAT Prep Tools Handle Your Missed QuestionsWhat happens after a wrong answer.
- SAT Score CalculatorTurn a practice result into an estimated score.
Your Next Step
Open College Board's practice page this week and finish one official set.
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Sign up and let adaptive practice and the AI Coach handle the rest. You'll know if it's working in a week.