Short answer. If you only need SAT Math, a math-only course gives you more for less: Sigma Prep: $49 a month, 24 full-length Math tests and a video on every question. If you need both sections, the two-section courses below cost $98 to $397 for two months, or you can pair a math-only course with free Reading and Writing practice.
Start free either way. College Board's Bluebook tests and Khan Academy cost nothing and belong in every plan.
We build Sigma Prep, so read this knowing that. Sigma Prep covers Math only. We don't offer Reading and Writing yet, so if both sections need work you'll need something else for Reading and Writing, and we say so in the table. Every price below comes from the company's own site, checked in October 2026. Prices and plans change, so check before you buy.
The comparison
| Price | Sections | Full-length tests | Explanations | |
|---|---|---|---|---|
| Sigma Prep | $49 a month, cancel anytime | Math only | 24 Math tests, plus 7,300+ Math questions | A short video solution on every question, straight to the method |
| UWorld | $99–$449 one-time | Both | Varies by plan | Visual explanation on every question |
| Magoosh | $49 a month | Both | Up to 3 | Video or text |
| PrepScholar | $397 for 12 months | Both | 8 (official) | Video lessons |
| Princeton Review | $299 for a year | Both | 5 | Video lessons |
| Kaplan | From about $199 | Both | 4 | Video lessons |
| Bluebook and Khan | Free | Both | Official tests in Bluebook | Khan: lessons and hints |
Trying it first, and getting your money back
| Try it first | Money back | |
|---|---|---|
| Sigma Prep | Free full-length test and diagnostic, no card | 14 days, any reason, no forms |
| UWorld | 7-day trial, 50 questions | Plans longer than 30 days only, prorated, with a fee |
| Magoosh | 7-day trial | 7 days; 100-point score guarantee |
| PrepScholar | 5-day trial | 160-point score guarantee, with conditions |
| Princeton Review | 14-day free trial | Within 7 days of enrolling |
| Kaplan | Sample lessons | Higher-score guarantee, with conditions |
Prices and terms from each company's own site, October 2026. Kaplan's site could not be checked directly; its figures are from its official listing. Score guarantees only pay after you finish the program; see what each guarantee requires.
What one or two months of prep actually costs
Most students prep for one to three months before a test date, not a year. That matters, because most courses only sell long access: you pay for twelve months whether you use them or not. Here is what each option costs if you need two months.
| Shortest plan sold | Cost for 2 months of prep | |
|---|---|---|
| Sigma Prep | 1 month ($49), cancel anytime | $98 |
| Magoosh | 1 month ($49) | $98 |
| UWorld | 30 days ($99 question bank, $299 course) | $149 question bank or $349 course (90-day plans) |
| Kaplan | On Demand, from about $199 | From about $199 |
| Princeton Review | 1 year ($299) | $299 |
| PrepScholar | 12 months ($397) | $397 |
For a student who only needs Math, two months of Sigma Prep is $98 for 24 full-length Math tests and 7,300+ Math questions. The same two months on a one-year course costs $299 to $397, and a large part of that pays for Reading and Writing.
The math-only option: Sigma Prep
$49 a month, cancel anytime. Math only. 7,300+ practice questions by skill and difficulty, 24 full-length SAT Math tests (one modelled on each official Bluebook test, each in three versions so a retake is a fresh test), and a short video solution on every question. There are no long lessons to sit through: each video goes straight to the method for that problem, usually the fastest way with the built-in Desmos calculator next to the textbook way.
Best for: a student whose Reading and Writing is fine and whose Math score is stuck, especially one who learns by watching a problem solved. Not for: a student who needs Reading and Writing prep; we don't cover it yet.
The first full-length test and a 12-question diagnostic are free without a card, and every subscription has a 14-day money-back guarantee, any reason, no forms.
Courses that cover both sections
UWorld
$99 to $249 for the question bank, $299 to $449 for the course, one-time, with access from 30 days to a year. UWorld is known for detailed explanations with visuals on every question, and the course plans add video lessons. Its own page gives different numbers of full-length tests, so check which plan includes what.
Best for: a student who needs both sections and wants a large question bank. Watch for: the price climbs with the access length, and refunds only apply to plans longer than 30 days, prorated, with a fee.
Magoosh
$49 a month (a 12-month plan is also listed). 200+ video lessons, a video or text explanation for every question, and up to 3 full-length tests. A 7-day money-back window and a 100-point score guarantee with conditions.
Best for: a budget course covering both sections at the same monthly price as Sigma Prep. Watch for: up to 3 full-length tests in total, and its question bank (its own pages say 1,750+ and 2,500+) covers both sections, so there is less Math depth than in a math-only course.
PrepScholar
$397 for 12 months. A self-paced course with 8 official tests and a 160-point score guarantee. The guarantee only pays if you finish every assigned lesson and practice test and take an official SAT on their schedule.
Best for: a student who will finish a whole structured course and wants a points promise attached.
Princeton Review Self-Paced
$299 for a year, with 5 full-length tests, video lessons and 65+ short lessons. A 14-day free trial, and a refund only within 7 days of enrolling.
Best for: a student who wants a big-brand structured course without live classes.
Kaplan On Demand
From about $199 (the listed starting price), with 4 adaptive full-length tests and 30+ video lessons.
Best for: a brand-name course at the low end of the full-course price range.
The free baseline
Bluebook, College Board's testing app, has the official full-length practice tests: the most accurate score you can get, free. Khan Academy is College Board's free partner for lessons and skill practice in both sections. Use both whatever else you buy. Bluebook tells you where you stand; a course is for moving it. (More on the free options in Khan Academy alternatives for SAT Math.)
Math-only or both sections?
This is the decision that saves the most money, and it's the one most students skip. Take one official Bluebook test and look at your two section scores.
- Your Reading and Writing is already where you want it: a math-only course is the better buy. Every practice question and every dollar goes to the section that's holding your score back. With Sigma Prep that's $49 a month, cancel when your test is done.
- Both sections need work: you can take a two-section course, or pair a math-only course with free Reading and Writing practice from Khan Academy and Bluebook. The second way often costs less and gives you far more Math practice.
- Your Math is close to your target already: start with the free options. Bluebook's official tests and Khan Academy may be all you need.
How to choose
- Take one official Bluebook test first. It tells you which section needs the work. If Math is the gap, you don't need to pay for a two-section course.
- Count the full-length tests. You'll want a fresh test every two or three weeks, and the official ones run out.
- Check how misses are explained. A written answer key and a video of the problem being solved are different things; pick the one you actually learn from.
- Read the refund terms, not the ad. A money-back window lets you try a course; a score guarantee only pays after you finish everything.
Only need Math? Try the free diagnostic, twelve real SAT Math questions with no card, or take a free full-length SAT Math test.