Why this works
Four things free prep does not do
It routes like the real test
Do well on Module 1 and Module 2 gets harder — the same section-adaptive routing as the actual Digital SAT, with real timing, the real format, and Desmos built in. Most practice tests are a static PDF with a countdown. Test day should feel like a rerun, not a surprise.
Wrong answers teach more than right ones
Every explanation names the specific trap the distractor set for you — the scope creep, the sign flip, the half-right answer, the too-fast inference. You do not learn that C was correct. You learn why B pulled you, which is the only thing that stops it happening again.
A score estimate that admits what it does not know
Your predicted score comes with a confidence range that narrows as you take more tests. Early on it is wide, and it says so. Nobody here is inflating a number to keep you feeling good — this is a number you can actually plan around.
Help arrives at the moment you miss
Miss a question and the explanation links straight to a free lesson on that exact concept — not a homepage, the lesson itself. The best free explanations on the internet already exist. We put them where they are useful.
Coverage
Every domain. Weighted like the real exam.
31topics across Reading & Writing and Math, each drilled at five difficulty levels — so a 1200 student and a 1500 student both find work at the right edge.
Information and Ideas
R&W
Central ideas and details, inferences, command of textual evidence, command of quantitative evidence
Craft and Structure
R&W
Words in context, text structure and purpose, cross-text connections
Expression of Ideas
R&W
Rhetorical synthesis, transitions between ideas, revision for clarity and concision
Standard English Conventions
R&W
Sentence boundaries, punctuation, subject-verb agreement, modifiers, parallelism
Algebra
Math
Linear equations and inequalities, systems, linear functions, one- and two-variable problems
Advanced Math
Math
Quadratics, polynomials, exponentials, nonlinear functions, equivalent expressions
Problem-Solving & Data Analysis
Math
Ratios and rates, percentages, statistics, probability, scatterplots, margin of error
Geometry & Trigonometry
Math
Area and volume, angles, triangles, right-triangle trigonometry, circles
How it goes
Start free. Upgrade when it is obvious.
Take the diagnostic
22 questions, about 25 minutes, no card. You finish with a score range and your weakest topics, ranked.
Drill what is broken
Your dashboard turns that list into practice. Ten questions a day are free, forever — every one with an explanation that names the trap.
Test like it is test day
When you are ready, take a full-length adaptive test. Score prediction, pacing analysis, and every weak topic one tap from a drill.
The questions
Original questions, built for this exam
Every question here is original — written to the College Board's published framework, tagged by domain, topic, and difficulty, and reviewed before it goes live. Nothing scraped. Nothing retrofitted from paper-era prep books.
Written for this exam
The SAT went digital and adaptive in 2024. Every question here was written for that test — not converted from a paper-era prep book.
Mapped to the framework
Each question is written to the College Board’s published framework and tagged by domain, topic, and difficulty before it can go live.
Five levels per topic
All 31 topics are drilled across five difficulty levels, so a 1200 student and a 1500 student both find work at the right edge.
Reviewed, not generated and shipped
Every question passes a review pass — correct answer verified, each distractor doing real work, the explanation naming a specific trap.
Pricing
One payment. No subscription. No auto-renewal.
Same question quality in every tier. The difference is how many practice tests you get and how long you keep access.
Drill
$49
3 months access
The question bank, and why every wrong answer was wrong
All 6,000 original questions
Every domain — 31 topics, five difficulty levels
Explanations that name the trap, not just the answer
Typed-answer (SPR) math entry, like Bluebook
Free lessons linked at the moment you miss
Progress dashboard by topic
Complete
$79
6 months access
The full loop: drill, test, predict, improve
Everything in Drill
8 full-length adaptive practice tests
Module 1 → Module 2 routing like the real thing
Score prediction with an honest confidence range
Cross-outs, flags, hidden timer, review screen, Desmos
Your weakest topics, one tap from drilling
Premium
$99
12 months access
Built for retakers chasing a target score
Everything in Complete
12 adaptive practice tests — a full retake cycle
Fresh questions every test — 3,500 math items means no reruns
A full year — junior spring through senior fall
Score history trend across every attempt
Not ready? The diagnostic and 10 questions a day are free.
Start free →For tutoring centers
Your students, your roster, live.
Seats from $59 per student. Every tutor gets a dashboard — predicted scores, topic mastery, who actually practiced this week — and a whole cohort onboards with one link. Set up your workspace and buy seats in five minutes, self-serve, no call required.
For high schools
PRICE LOCKED 2 YEARSThe Founding School rate: $10–15 per student, per school year.
Every student gets Premium — all 6,000 questions, 12 adaptive tests, score prediction. Teachers and counselors watch progress on a live class dashboard. A junior class onboards from one link on the board, with no rosters to type.
Pilot one class free for 30 days · 25-seat minimum · invoice or card