freepracticeSAT.com vs UWorld: Which One Is Right for Your SAT Math Score?

By Dr. Brink, Ph.D., 32 years teaching mathematics

WHERE I WOULD START If you need Reading and Writing practice as well as math, and you have the money, UWorld covers both sections and starts at \$99. If math is the section holding your score down, start with freepracticeSAT.com. The tests are free, they adapt the way the real SAT does, and the results tell you which mistakes and which missing basics are costing you points.

I built freepracticeSAT.com, so read this knowing that. I've also spent 32 years teaching math, and I'd rather a student use the right tool than mine. UWorld is a serious product, and a lot of students use it.

Everything I say about UWorld below comes from UWorld's own SAT page as I read it in October 2026. Prices and features change, so check their site before you buy.

What UWorld gives you

Three products. An SAT Question Bank starting at \$99, an SAT Prep Course starting at \$299, and a printed study guide starting at \$59. There's a 7-day free trial.
2,000+ practice questions across both SAT sections, Math and Reading and Writing together.
Explanations that walk through each question step by step, with visuals, and explain why the wrong answers are wrong.
Full-length adaptive practice tests. One test to benchmark you, then up to nine more built from the question bank.
Desmos built in on the math questions, and a dashboard that tracks your accuracy by topic, your timing, and a predicted score.
Video lessons in the course version.

That's a lot of good material. If a family can afford it and the student needs both sections, it's a reasonable choice.

What freepracticeSAT.com gives you

My site does one section, math, and goes deep on it. Here is what's there, and what's free.

4,700 questions, all written by a math teacher

Every one of the 4,700 questions was built by me. Each one is coded to one of 69 SAT math topics and to the basics underneath it. More on that below, because it's the part that matters most.

Adaptive tests, like the real SAT

On the real digital SAT, how you do on Module 1 decides whether Module 2 is easier or harder. My tests work the same way from your second test on. Your first test is a fixed diagnostic, so every student starts from the same measuring stick.

You choose the difficulty

Take a mixed test that looks like the real SAT, or a test of only easy, only medium, or only hard questions. A student stuck around 500 often needs a week of medium questions before hard ones teach them anything. A student aiming for 750 needs the hard ones.

Timed or untimed, with Desmos and the formula sheet

Every test can be timed or untimed. The Desmos graphing calculator and the reference sheet are built into the test screen, the same tools you'll have on test day.

Help with Desmos

Many SAT math questions are faster in Desmos than on paper, if you know how. There's a free guide on this blog, How to Use Desmos on the SAT, and the \$29 plan includes my video walkthroughs of questions Desmos solves well.

A Foundations course for the basics

SAT questions stand on about 280 basic skills, from fractions and negative numbers to slope and factoring. The free Foundations course works through those basics. If your score has been stuck for a while, a missing basic is usually the reason.

The diagnosis is where the two differ most

Both sites will tell you which topics you're weak in. Mine goes one step further, and this is the part I care about as a teacher.

Every wrong answer choice on my site is linked to the specific mistake that produces it. Every question is linked to the basics it depends on. When you finish a test, the site cross-references all of that, across all your tests, and finds the mistakes you keep making and the basics you keep missing, even when they show up in questions from different topics.

Here is a simple case. A student solves $-3x + 5 > 11$ and picks $x > -2$.

The correct answer is $x < -2$. Dividing both sides by $-3$ flips the inequality, and this student didn't flip it.

One wrong answer like that is easy to shrug off. But if the same slip shows up in an inequality question, a word problem and a system of inequalities over three tests, that's not carelessness. It's a habit, and it's worth points every time you take the test. That's what the diagnosis finds and names.

On the free results page you see your score, a worked solution, and the first recurring mistake and the first missing basic taught in full, with a count of the rest. The \$29 plan opens all of them.

Side by side

	UWorld	freepracticeSAT.com
Price	Question bank from \$99, course from \$299	Tests free and unlimited. Optional \$29 plan
Sections	Math and Reading and Writing	Math only
Questions	2,000+ across both sections	4,700 math questions
Adaptive tests	Yes	Yes, from your second test on
Choose difficulty	Custom practice sets from the question bank	Easy, medium, hard or mixed tests
Desmos	Built in	Built in, plus a free guide and walkthrough videos in the \$29 plan
Weak areas	Accuracy by topic, timing, predicted score	69 topics and 280 basics, with recurring mistakes found across all your tests
Teaching	Video lessons in the course version	Free Foundations course, plus a lesson for each of your recurring mistakes in the \$29 plan
Try it first	7-day free trial	Always free

UWorld details from UWorld's SAT page, October 2026.

What the \$29 plan adds

The practice tests stay free. If you want me to tell you what to do each day, the \$29 plan builds a day-by-day schedule from your results up to your test date: your recurring mistakes and missing basics taught one at a time with practice, every worked solution, the Desmos videos, and full practice tests spaced out along the way. It's one payment, not a subscription.

So which one?

You need help in Reading and Writing too, and the cost isn't a problem: UWorld covers both sections in one place.
Math is the section that's holding you back: start with freepracticeSAT.com. Take a free test and see what the diagnosis says before you spend anything.
You've done lots of practice and your math score won't move: that's almost always a few recurring mistakes or a missing basic. That's exactly what my site is built to find.
You're using UWorld already: keep it for Reading and Writing and use my tests for math. Nothing stops you from using both.

Whatever you choose, also take the free official practice tests in the College Board's Bluebook app. They are the closest thing to test day.

Good luck,
Dr. Brink
Ph.D., 32 years teaching math

Take a full SAT math test and find out what's costing you points. Free, no credit card.

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